CN107935102A - A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic - Google Patents
A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic Download PDFInfo
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- CN107935102A CN107935102A CN201711245269.6A CN201711245269A CN107935102A CN 107935102 A CN107935102 A CN 107935102A CN 201711245269 A CN201711245269 A CN 201711245269A CN 107935102 A CN107935102 A CN 107935102A
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- magnetic
- bismuth oxyiodide
- persulfuric acid
- acid hydrogen
- hydrogen salt
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- CBACFHTXHGHTMH-UHFFFAOYSA-N 2-piperidin-1-ylethyl 2-phenyl-2-piperidin-1-ylacetate;dihydrochloride Chemical compound Cl.Cl.C1CCCCN1C(C=1C=CC=CC=1)C(=O)OCCN1CCCCC1 CBACFHTXHGHTMH-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 61
- 239000001257 hydrogen Substances 0.000 title claims abstract description 61
- -1 persulfuric acid hydrogen salt Chemical class 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 19
- 239000011259 mixed solution Substances 0.000 claims abstract description 48
- 230000003115 biocidal effect Effects 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 230000005855 radiation Effects 0.000 claims abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 72
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 48
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000000725 suspension Substances 0.000 claims description 24
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 16
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- HDMGAZBPFLDBCX-UHFFFAOYSA-M potassium;sulfooxy sulfate Chemical compound [K+].OS(=O)(=O)OOS([O-])(=O)=O HDMGAZBPFLDBCX-UHFFFAOYSA-M 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 229960001699 ofloxacin Drugs 0.000 claims description 9
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 9
- 230000009514 concussion Effects 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 4
- MYSWGUAQZAJSOK-UHFFFAOYSA-N ciprofloxacin Chemical compound C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 MYSWGUAQZAJSOK-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- XUBOMFCQGDBHNK-JTQLQIEISA-N (S)-gatifloxacin Chemical compound FC1=CC(C(C(C(O)=O)=CN2C3CC3)=O)=C2C(OC)=C1N1CCN[C@@H](C)C1 XUBOMFCQGDBHNK-JTQLQIEISA-N 0.000 claims description 2
- 229960003405 ciprofloxacin Drugs 0.000 claims description 2
- 229960003923 gatifloxacin Drugs 0.000 claims description 2
- UIOFUWFRIANQPC-JKIFEVAISA-N Floxacillin Chemical compound N([C@@H]1C(N2[C@H](C(C)(C)S[C@@H]21)C(O)=O)=O)C(=O)C1=C(C)ON=C1C1=C(F)C=CC=C1Cl UIOFUWFRIANQPC-JKIFEVAISA-N 0.000 claims 1
- 229960004273 floxacillin Drugs 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003242 anti bacterial agent Substances 0.000 abstract 1
- 229940088710 antibiotic agent Drugs 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 239000012286 potassium permanganate Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000010525 oxidative degradation reaction Methods 0.000 description 2
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- PRXLCSIMRQFQMX-UHFFFAOYSA-N [O].[I] Chemical compound [O].[I] PRXLCSIMRQFQMX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229960001180 norfloxacin Drugs 0.000 description 1
- OGJPXUAPXNRGGI-UHFFFAOYSA-N norfloxacin Chemical compound C1=C2N(CC)C=C(C(O)=O)C(=O)C2=CC(F)=C1N1CCNCC1 OGJPXUAPXNRGGI-UHFFFAOYSA-N 0.000 description 1
- 230000000361 pesticidal effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/843—Arsenic, antimony or bismuth
- B01J23/8437—Bismuth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic, it is related to a kind of method for removing residual antibiotic in water removal.The invention aims to of high cost, problem the defects of poor removal effect and complex process that solves the existing method for removing water removal moderate resistance life element.Method：First, persulfuric acid hydrogen salt is mixed with the pretreated water containing antibiotic；2nd, pH value in reaction is adjusted；3rd, magnetic bismuth oxyiodide is prepared；4th, add magnetic bismuth oxyiodide and use radiation of visible light mixed solution；5th, magnetic bismuth oxyiodide is separated using external magnetic field, that is, completes a kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic.The plain efficiency of water removal moderate resistance life is gone to reach 75%~95% using the method for the present invention.The present invention can go residues of antibiotics in water removal.
Description
Technical field
The present invention relates to a kind of method for removing water removal moderate resistance life element.
Background technology
With the quickening of social process of industrialization, the compound with antibiotic effect is added as detergent, lubricating oil
The fields such as the main component of agent, plasticizer etc. is widely used in weaving, cleans, pesticidal emulsifiable, and hospital wastewater, sewage treatment plant
And the random discharge of plant effuent etc., cause environment antibiotic content in natural water to increase year by year, to the safe structure of ambient water quality
Into very big threat.
At present both at home and abroad remove water environment in the common method of antibiotic include bioanalysis, physico-chemical process, electrochemical process and
Membrane-filter procedure.Since antibiotic is to the toxic action of biology so that effect ten is removed to it without special acclimated microorganism
Divide limited；Electrochemical process is due to higher to low concentration pollutant processed in units cost, it is difficult to large-scale use；Though membrane technology is wide
It is general to be applied to environment water process, however higher membrane module equipment and operating cost make its be difficult to remove on a large scale it is specific organic
Play a role in pollutant；Photocatalytic oxidation in physico-chemical process due to reaction rate is fast, removal efficiency is high, cost is controllable and
It is widely applied in water process, but catalyst existing for this method is difficult to recycle, regeneration cost and energy consumption are excessive asks
Topic, makes it still have certain limitation in application study.
The content of the invention
The invention aims to solve the problems, such as existing to go that feature antibiotic is difficult in water removal, treatment effeciency is low, there is provided
A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic.
A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic, is specifically
Complete according to the following steps：
First, persulfuric acid hydrogen salt is mixed with the pretreated water containing antibiotic, then with mixing speed is at room temperature 160 r/min
The min of 20 min ~ 45 is stirred under conditions of ~ 250 r/min, obtains the mixed solution of persulfuric acid hydrogen salt and pretreated water；
Persulfuric acid hydrogen salt described in step 1 is in potassium hydrogen persulfate, hydrogen persulfate ammonium, hydrogen persulfate sodium and hydrogen persulfate calcium
One kind or wherein several mixtures；
The concentration of antibiotic is 0.01~100 mg/L in pretreated water described in step 1：
The mass ratio of the quality of persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:(1000~10000)；
2nd, adjust pH value in reaction, low whipping speed under conditions of the r/min of 150 r/min~200 using 0.1 mol/L ~
The perchloric acid of 100 mol/L and the sodium hydroxide solution of 0.1mol/L ~ 100mol/L are by persulfuric acid hydrogen salt and pretreated water
The pH values of mixed solution are adjusted to 6.5 ~ 7.5, the mixed solution of persulfuric acid hydrogen salt and pretreated water after adjusted pH values；
3rd, magnetic bismuth oxyiodide is prepared：
1., by Fe3O4Mass fraction is added to as in 97% ~ 99% ethylene glycol, vigorous magnetic stirs 10 min, reuses ultrasonic wave
Scattered 30 min of concussion instrument concussion, obtain Fe3O4With the mixed solution of ethylene glycol；
Step 3 1. described in Fe3O4Quality and the volume ratio of ethylene glycol solution that mass fraction is 97% ~ 99% be
(0.001g~10g):1 mL；
2., the mixed solution of bismuth nitrate and absolute ethyl alcohol, potassium iodide aqueous solution be added sequentially to Fe3O4With the mixing of ethylene glycol
In solution, after magnetic agitation 60min, mixing suspension is obtained；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution in the concentration of bismuth nitrate be 0.01 ~ 10 mol/L；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution and Fe3O4With the volume of the mixed solution of ethylene glycol
Than for (0.1 ~ 100)：1；
Step 3 2. described in potassium iodide aqueous solution in the concentration of potassium iodide be 0.01 ~ 10 mol/L；
Step 3 2. described in potassium iodide aqueous solution and Fe3O4Volume ratio with the mixed solution of ethylene glycol is (0.1 ~ 100)：
1；
3., will using the sodium hydroxide solution of the mol/L of the perchloric acid of the mol/L of 0.1 mol/L ~ 100 and 0.1 mol/L ~ 100
Mixing suspension is adjusted to certain ph, then mixing suspension is added to the stainless steel reaction under high pressure that liner is polytetrafluoroethylene (PTFE)
In kettle, then stainless steel autoclave sealed, the stainless steel autoclave after sealing is reacted at 120 DEG C ~ 200 DEG C
12h ~ 48h, obtains magnetic bismuth oxyiodide suspension；
Step 3. described in mixing suspension certain ph be pH 1.0 ~ 7.0；
4., by step 3. in obtained magnetic bismuth oxyiodide suspension in centrifugal speed under the r/min of 6500 r/min ~ 8000
The min of 10 min ~ 30, the deposit after being centrifuged is centrifuged；Deionized water and washes of absolute alcohol is respectively adopted
Deposit after centrifugation each 5 times ~ 10 times, then dry 6h ~ 24h in the case where temperature is -18 DEG C ~ 80 DEG C, obtain Tan solid
As magnetic bismuth oxyiodide；
4th, add magnetic bismuth oxyiodide and use radiation of visible light mixed solution；
In persulfuric acid hydrogen salt and the mixed solution of pretreated water that magnetic bismuth oxyiodide is added to after adjusting pH values, reuse
Visible light source irradiates mixed solution, and the min of 10 min of reaction time ~ 240, obtains the water containing the bismuth oxyiodide that is magnetic；
The dosage of magnetic bismuth oxyiodide described in step 4 is the mg/L of 1 mg/L ~ 200；
Visible light source power described in step 4 is the W of 10 W ~ 1000；
5th, magnetic bismuth oxyiodide is separated using external magnetic field：The water containing the bismuth oxyiodide that is magnetic is separated using external magnetic field, is returned
Magnetic BiOX is received, the glass fibre membrane that aperture is 0.45 μm is reused and the magnetic bismuth oxyiodide of recycling is filtered, then
Cleaned 5 times ~ 10 times using deionized water and absolute ethyl alcohol are each to the magnetic bismuth oxyiodide difference after filtering respectively, then be in temperature
12h ~ 48h is dried in vacuo at 50 DEG C ~ 75 DEG C, the magnetic bismuth oxyiodide after being regenerated and the water for removing water removal moderate resistance life element.
The principle of the present invention：
intermediateproducts
In the present invention on photochemical catalyst bismuth oxyiodide surface under visible light illumination, positioned at the photoelectron transition of forbidden band, formed empty
Cave electronics pair（h+-eCB -）.HSO in reaction system in the photoelectron and potassium hydrogen persulfate on bismuth oxyiodide surface5 -Or SO5 2-Occur
Electronics shifts, so that persulfuric acid hydrogen radical is cracked into SO4 -With OH-；In addition, rest on photochemical catalyst bismuth oxyiodide surface
Hole, can be by HSO5 -Activation generation SO5 -Free radical, accelerates the removal rate of antibiotic；On the other hand it is supported on iodine
The Fe on bismuth oxide surfaceⅡHSO can be activated5 -So that the SO in reaction system4 -With OH-Quantity further increases, so as to accelerate
The oxidative degradation of antibiotic.
Embodiment
Embodiment one：Present embodiment is that one kind utilizes persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of water removal moderate resistance life element is gone to complete according to the following steps：
First, persulfuric acid hydrogen salt is mixed with the pretreated water containing antibiotic, then with mixing speed is at room temperature 160 r/min
The min of 20 min ~ 45 is stirred under conditions of ~ 250 r/min, obtains the mixed solution of persulfuric acid hydrogen salt and pretreated water；
Persulfuric acid hydrogen salt described in step 1 is in potassium hydrogen persulfate, hydrogen persulfate ammonium, hydrogen persulfate sodium and hydrogen persulfate calcium
One kind or wherein several mixtures；
The concentration of antibiotic is 0.01~100 mg/L in pretreated water described in step 1：
The mass ratio of the quality of persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:(1000~10000)；
2nd, adjust pH value in reaction, low whipping speed under conditions of the r/min of 150 r/min~200 using 0.1 mol/L ~
The perchloric acid of 100 mol/L and the sodium hydroxide solution of 0.1mol/L ~ 100mol/L are by persulfuric acid hydrogen salt and pretreated water
The pH values of mixed solution are adjusted to 6.5 ~ 7.5, the mixed solution of persulfuric acid hydrogen salt and pretreated water after adjusted pH values；
3rd, magnetic bismuth oxyiodide is prepared：
1., by Fe3O4Mass fraction is added to as in 97% ~ 99% ethylene glycol, vigorous magnetic stirs 10 min, reuses ultrasonic wave
Scattered 30 min of concussion instrument concussion, obtain Fe3O4With the mixed solution of ethylene glycol；
Step 3 1. described in Fe3O4Quality and the volume ratio of ethylene glycol solution that mass fraction is 97% ~ 99% be
(0.001g~10g):1 mL；
2., the mixed solution of bismuth nitrate and absolute ethyl alcohol, potassium iodide aqueous solution be added sequentially to Fe3O4With the mixing of ethylene glycol
In solution, after magnetic agitation 60min, mixing suspension is obtained；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution in the concentration of bismuth nitrate be 0.01 ~ 10 mol/L；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution and Fe3O4With the volume of the mixed solution of ethylene glycol
Than for (0.1 ~ 100)：1；
Step 3 2. described in potassium iodide aqueous solution in the concentration of potassium iodide be 0.01 ~ 10 mol/L；
Step 3 2. described in potassium iodide aqueous solution and Fe3O4Volume ratio with the mixed solution of ethylene glycol is (0.1 ~ 100)：
1；
3., will using the sodium hydroxide solution of the mol/L of the perchloric acid of the mol/L of 0.1 mol/L ~ 100 and 0.1 mol/L ~ 100
Mixing suspension is adjusted to certain ph, then mixing suspension is added to the stainless steel reaction under high pressure that liner is polytetrafluoroethylene (PTFE)
In kettle, then stainless steel autoclave sealed, the stainless steel autoclave after sealing is reacted at 120 DEG C ~ 200 DEG C
12h ~ 48h, obtains magnetic bismuth oxyiodide suspension；
Step 3. described in mixing suspension certain ph be pH 1.0 ~ 7.0；
4., by step 3. in obtained magnetic bismuth oxyiodide suspension in centrifugal speed under the r/min of 6500 r/min ~ 8000
The min of 10 min ~ 30, the deposit after being centrifuged is centrifuged；Deionized water and washes of absolute alcohol is respectively adopted
Deposit after centrifugation each 5 times ~ 10 times, then dry 6h ~ 24h in the case where temperature is -18 DEG C ~ 80 DEG C, obtain Tan solid
As magnetic bismuth oxyiodide；
4th, add magnetic bismuth oxyiodide and use radiation of visible light mixed solution；
In persulfuric acid hydrogen salt and the mixed solution of pretreated water that magnetic bismuth oxyiodide is added to after adjusting pH values, reuse
Visible light source irradiates mixed solution, and the min of 10 min of reaction time ~ 240, obtains the water containing the bismuth oxyiodide that is magnetic；
The dosage of magnetic bismuth oxyiodide described in step 4 is the mg/L of 1 mg/L ~ 200；
Visible light source power described in step 4 is the W of 10W ~ 1000；
5th, magnetic bismuth oxyiodide is separated using external magnetic field：The water containing the bismuth oxyiodide that is magnetic is separated using external magnetic field, is returned
Magnetic BiOX is received, the glass fibre membrane that aperture is 0.45 μm is reused and the magnetic bismuth oxyiodide of recycling is filtered, then
Cleaned 5 times ~ 10 times using deionized water and absolute ethyl alcohol are each to the magnetic bismuth oxyiodide difference after filtering respectively, then be in temperature
12h ~ 48h is dried in vacuo at 50 DEG C ~ 75 DEG C, the magnetic bismuth oxyiodide after being regenerated and the water for removing water removal moderate resistance life element.
The principle of present embodiment：
intermediateproducts
In present embodiment on photochemical catalyst bismuth oxyiodide surface under visible light illumination, positioned at the photoelectron transition of forbidden band, shape
Into hole-electron pair（h+-eCB -）.HSO in reaction system in the photoelectron and potassium hydrogen persulfate on bismuth oxyiodide surface5 -Or SO5 2-
Generation electronics shifts, so that persulfuric acid hydrogen radical is cracked into SO4 -With OH-；In addition, rest on photochemical catalyst bismuth oxyiodide
The hole on surface, can be by HSO5 -Activation generation SO5 -Free radical, accelerates the removal rate of antibiotic；On the other hand load
Fe on bismuth oxyiodide surfaceⅡHSO can be activated5 -So that the SO in reaction system4 -With OH-Quantity further increases, so that
Accelerate the oxidative degradation of antibiotic.
The advantages of present embodiment：
First, present embodiment is easy to operate, and degradation by-products are nontoxic；
2nd, present embodiment is to be reacted at normal temperatures and pressures, saves the energy, the method that the antibiotic in water removal is removed with other
Compare, reduce cost 45% ~ 70%；
3rd, the magnetic bismuth oxyiodide synthesized by present embodiment can be easier to recycle and regenerate；
4th, present embodiment has good removal rate to antibiotic in water, and up to 80%~95%.
Embodiment two：Present embodiment is with one difference of embodiment：Pre- place described in step 1
It is the one or more in lavo-ofloxacin, Ciprofloxacin, Norfloxacin, gatifloxacin and fleraxacin to manage the antibiotic in water
Mixture, other steps are identical with embodiment one.
Embodiment three：Present embodiment is with one of embodiment one or two difference：Institute in step 1
The mass ratio of the quality for the persulfuric acid hydrogen salt stated and the water of pretreatment is 1:(1000 ~ 5000), other steps and specific embodiment party
Formula one or two is identical.
Embodiment four：Present embodiment is with one of embodiment one to three difference：Institute in step 1
The mass ratio of the quality for the persulfuric acid hydrogen salt stated and the water of pretreatment is 1:(5000 ~ 8000), other steps and specific embodiment party
Formula one to three is identical.
Embodiment five：Present embodiment is with one of embodiment one to four difference：Step 3 1. in
The power of the ultrasonic oscillation instrument is the W of 100 W ~ 1000, other steps are identical with embodiment one to four.
Embodiment six：Present embodiment is with one of embodiment one to five difference：1. step 3 is planted
The Fe3O4Particle diameter be the nm of 15 nm ~ 500, other steps are identical with embodiment one to five.
Embodiment seven：Present embodiment is with one of embodiment one to six difference：1. step 3 is planted
The Fe3O4Particle diameter be the nm of 500 nm ~ 2000, other steps are identical with embodiment one to six.
Embodiment eight：Present embodiment is with specific implementation one of embodiment one to seven difference：Step 4
Described in the dosage of magnetic bismuth oxyiodide be the mg/L of 1 mg/L ~ 10, other steps and the phase of embodiment one to seven
Together.
Embodiment nine：Present embodiment is with one of embodiment one to eight difference：Institute in step 4
The visible light source power stated is the W of 100 W ~ 1000, other steps are identical with embodiment one to eight.
Embodiment ten：Present embodiment is with one of embodiment one to nine difference：Institute in step 5
The external magnetic field strength stated is 0.01T ~ 1T, other steps are identical with embodiment one to nine.
Beneficial effects of the present invention are verified using tests below：
Experiment one：A kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
First, persulfuric acid hydrogen salt is mixed with the pretreated water containing antibiotic, then with mixing speed is at room temperature 160 r/min
The min of 20 min ~ 45 is stirred under conditions of ~ 250 r/min, obtains the mixed solution of persulfuric acid hydrogen salt and pretreated water；
A kind of antibiotic of step is lavo-ofloxacin；
A kind of persulfuric acid hydrogen salt of step is potassium hydrogen persulfate；
The concentration of antibiotic is 5 mg/L in pretreated water described in step 1：
The mass ratio of the quality of persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:2000；
2nd, adjust pH value in reaction, low whipping speed under conditions of the r/min of 150 r/min~200 using 0.1 mol/L ~
The sodium hydroxide solution of the mol/L of the perchloric acid of 100 mol/L and 0.1 mol/L ~ 100 is by persulfuric acid hydrogen salt and pretreated water
The pH values of mixed solution adjust to 6.5 ~ 7.5, the mixing of persulfuric acid hydrogen salt and pretreated water after adjusted pH values is molten
Liquid；
3rd, magnetic bismuth oxyiodide is prepared：
1., by Fe3O4Mass fraction is added to as in 97% ~ 99% ethylene glycol, vigorous magnetic stirs 10 min, reuses ultrasonic wave
Scattered 30 min of concussion instrument concussion, obtain Fe3O4With the mixed solution of ethylene glycol；
Step 3 1. described in the power of ultrasonic oscillation instrument be 200 W；
Step 3 1. described in Fe3O4Particle diameter be 20 nm；
Step 3 1. described in Fe3O4Quality and the volume ratio of ethylene glycol solution that mass fraction is 97% ~ 99% be
0.01g:1mL；
2., the mixed solution of bismuth nitrate and absolute ethyl alcohol, potassium iodide aqueous solution be added sequentially to Fe3O4With the mixing of ethylene glycol
In solution, after 60 min of magnetic agitation, mixing suspension is obtained；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution in the concentration of bismuth nitrate be 1 mol/L；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution and Fe3O4With the volume of the mixed solution of ethylene glycol
Than for 10：1；
Step 3 2. described in potassium iodide aqueous solution in the concentration of potassium iodide be 1 mol/L；
Step 3 2. described in potassium iodide aqueous solution and Fe3O4Volume ratio with the mixed solution of ethylene glycol is 10：1；
3., will using the sodium hydroxide solution of the mol/L of the perchloric acid of the mol/L of 0.1 mol/L ~ 100 and 0.1 mol/L ~ 100
Mixing suspension is adjusted to certain ph, then mixing suspension is added to the stainless steel reaction under high pressure that liner is polytetrafluoroethylene (PTFE)
In kettle, then stainless steel autoclave sealed, the stainless steel autoclave after sealing is reacted at 120 DEG C ~ 180 DEG C
12h ~ 48h, obtains magnetic bismuth oxyiodide suspension；
Step 3. described in mixing suspension certain ph be pH 7.0；
4., by step 3. in obtained magnetic bismuth oxyiodide suspension in centrifugal speed under the r/min of 6500 r/min ~ 8000
The min of 10 min ~ 30, the deposit after being centrifuged is centrifuged；Deionized water and washes of absolute alcohol is respectively adopted
Deposit after centrifugation each 5 times ~ 10 times, the h of then dry 6 h at being -18 DEG C ~ 80 DEG C in temperature ~ 24, obtains magnetic iodine oxygen
Change bismuth；
4th, add magnetic bismuth oxyiodide and use radiation of visible light mixed solution；
In persulfuric acid hydrogen salt and the mixed solution of pretreated water that magnetic bismuth oxyiodide is added to after adjusting pH values, reuse
Visible light source irradiates mixed solution, and the min of 10 min of reaction time ~ 240, obtains the water containing the bismuth oxyiodide that is magnetic；
The dosage of magnetic bismuth oxyiodide described in step 4 is 10 mg/L；
Visible light source power described in step 4 is 500 W；
5th, magnetic bismuth oxyiodide is separated using external magnetic field：The water containing the bismuth oxyiodide that is magnetic is separated using external magnetic field, is returned
Magnetic bismuth oxyiodide is received, the glass fibre membrane that aperture is 0.45 μm is reused and the magnetic bismuth oxyiodide of recycling is filtered, then
Respectively using deionized water and absolute ethyl alcohol to respectively cleaning 5 times ~ 10 times of the magnetic bismuth oxyiodide after filtering, then in temperature it is 50 DEG C
The h of 12h ~ 48 is dried in vacuo at ~ 75 DEG C, magnetic bismuth oxyiodide after regenerate and removes the plain water of water removal moderate resistance life；
External magnetic field strength described in step 5 is 0.05 T.
The advantages of this experiment：
First, this test operation is simple, and degradation by-products are nontoxic；
2nd, this experiment is to be reacted at normal temperatures and pressures, saves the energy, and the method phase of the antibiotic in water removal is gone with other
Than reducing cost 50%；
3rd, the synthesized magnetic bismuth oxyiodide of this experiment can be easier to recycle and regenerate；
4th, this experiment has good removal rate up to 96% to antibiotic in water.
Experiment two：The contrast test of water removal moderate resistance life element is gone using activated carbon, is specifically realized by the following steps：
24 h of antibiotic in pretreated water is adsorbed for the coconut husk granular activated carbon of the nm of 4 nm ~ 100 using particle diameter, is removed
The water of antibiotic in water；
Antibiotic is lavo-ofloxacin in the pretreated water, and the concentration of lavo-ofloxacin is 5 mg/L；
Gone in experiment two using particle diameter for antibiotic in the coal quality granular activated carbon Adsorption pretreated water of the nm of 4 nm ~ 100
Except rate is 36%.
Experiment three：The contrast test of water removal moderate resistance life element is gone using potassium permanganate, is specifically realized by the following steps：
Add the potassium permanganate that concentration is 10 mg/L into the water of pretreatment, 2 h of antibiotic in oxidation removal pretreated water,
Obtain the water of water removal moderate resistance life element；
Antibiotic is lavo-ofloxacin in the pretreated water, and the concentration of lavo-ofloxacin is 5 mg/L；
Experiment three is 57% using the removal rate that potassium permanganate oxidation removes antibiotic in pretreated water.
Experiment four：The contrast test of water removal moderate resistance life element is gone using potassium hydrogen persulfate, is specifically realized by the following steps：
The potassium hydrogen persulfate of 2 mg/L is added into pretreated water, reacts 2 h, obtains the water of water removal moderate resistance life element；
Antibiotic is lavo-ofloxacin in the pretreated water, and the concentration of lavo-ofloxacin is 5 mg/L；
Experiment four is 2% using the removal rate that potassium hydrogen persulfate removes antibiotic in pretreated water.
Experiment two using cocoanut active charcoal go water removal moderate resistance life element, experiment three using potassium permanganate go water removal moderate resistance life element and
It is respectively 36%, 57% and 2% that experiment four removes the removal rate of water removal moderate resistance life element using potassium hydrogen persulfate, and tests one removal rate
For 96%, it was demonstrated that experiment one is for removing antibiotic excellent in pretreated water.
Claims (10)
1. a kind of method that water removal moderate resistance life element is removed using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic, its feature are existed
Go to remove water the plain method of moderate resistance life using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic to be according to the following steps in a kind of
Complete：
First, persulfuric acid hydrogen salt is mixed with the pretreated water containing antibiotic, then with mixing speed is at room temperature 160 r/min
The min of 20 min ~ 45 is stirred under conditions of ~ 250 r/min, obtains the mixed solution of persulfuric acid hydrogen salt and pretreated water；
Persulfuric acid hydrogen salt described in step 1 is in potassium hydrogen persulfate, hydrogen persulfate ammonium, hydrogen persulfate sodium and hydrogen persulfate calcium
One kind or wherein several mixtures；
The concentration of antibiotic is 0.01~100 mg/L in pretreated water described in step 1：
The mass ratio of the quality of persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:(1000~10000)；
2nd, adjust pH value in reaction, low whipping speed under conditions of the r/min of 150 r/min~200 using 0.1 mol/L ~
The perchloric acid of 100 mol/L and the sodium hydroxide solution of 0.1mol/L ~ 100mol/L are by persulfuric acid hydrogen salt and pretreated water
The pH values of mixed solution are adjusted to 6.5 ~ 7.5, the mixed solution of persulfuric acid hydrogen salt and pretreated water after adjusted pH values；
3rd, magnetic bismuth oxyiodide is prepared：
1., by Fe3O4Mass fraction is added to as in 97% ~ 99% ethylene glycol, vigorous magnetic stirs 10 min, reuses ultrasonic wave
Scattered 30 min of concussion instrument concussion, obtain Fe3O4With the mixed solution of ethylene glycol；
Step 3 1. described in Fe3O4Quality and the volume ratio of ethylene glycol solution that mass fraction is 97% ~ 99% be
(0.001g~10g):1 mL；
2., the mixed solution of bismuth nitrate and absolute ethyl alcohol, potassium iodide aqueous solution be added sequentially to Fe3O4With the mixing of ethylene glycol
In solution, after 60 min of magnetic agitation, mixing suspension is obtained；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution in the concentration of bismuth nitrate be 0.01 ~ 10 mol/L；
Step 3 2. described in bismuth nitrate and absolute ethyl alcohol mixed solution and Fe3O4With the volume of the mixed solution of ethylene glycol
Than for (0.1 ~ 100)：1；
Step 3 2. described in potassium iodide aqueous solution in the concentration of potassium iodide be 0.01 ~ 10 mol/L；
Step 3 2. described in potassium iodide aqueous solution and Fe3O4Volume ratio with the mixed solution of ethylene glycol is (0.1 ~ 100)：
1；
3., will using the sodium hydroxide solution of the mol/L of the perchloric acid of the mol/L of 0.1 mol/L ~ 100 and 0.1 mol/L ~ 100
Mixing suspension is adjusted to certain ph, then mixing suspension is added to the stainless steel reaction under high pressure that liner is polytetrafluoroethylene (PTFE)
In kettle, then stainless steel autoclave sealed, the stainless steel autoclave after sealing is reacted 12 at 120 DEG C ~ 200 DEG C
The h of h ~ 48, obtains magnetic bismuth oxyiodide suspension；
Step 3. described in mixing suspension certain ph be pH 1.0 ~ 7.0；
4., by step 3. in obtained magnetic bismuth oxyiodide suspension in centrifugal speed under the r/min of 6500 r/min ~ 8000
The min of 10 min ~ 30, the deposit after being centrifuged is centrifuged；Deionized water and washes of absolute alcohol is respectively adopted
Deposit after centrifugation each 5 times ~ 10 times, then dry 6h ~ 24h in the case where temperature is -18 DEG C ~ 80 DEG C, obtain Tan solid
As magnetic bismuth oxyiodide；
4th, add magnetic bismuth oxyiodide and use radiation of visible light mixed solution；
In persulfuric acid hydrogen salt and the mixed solution of pretreated water that magnetic bismuth oxyiodide is added to after adjusting pH values, reuse
Visible light source irradiates mixed solution, and the min of 10 min of reaction time ~ 240, obtains the water containing the bismuth oxyiodide that is magnetic；
The dosage of magnetic bismuth oxyiodide described in step 4 is the mg/L of 1 mg/L ~ 200；
Visible light source power described in step 4 is the W of 10 W ~ 1000；
5th, magnetic bismuth oxyiodide is separated using external magnetic field：The water containing the bismuth oxyiodide that is magnetic is separated using external magnetic field, is returned
Magnetic bismuth oxyiodide is received, the glass fibre membrane that aperture is 0.45 μm is reused and the magnetic bismuth oxyiodide of recycling is filtered, then
Cleaned 5 times ~ 10 times using deionized water and absolute ethyl alcohol are each to the magnetic bismuth oxyiodide difference after filtering respectively, then be in temperature
12h ~ 48h is dried in vacuo at 50 DEG C ~ 75 DEG C, the magnetic bismuth oxyiodide after being regenerated and the water for removing water removal moderate resistance life element.
2. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that the antibiotic in pretreated water described in step 1 is lavo-ofloxacin, Ciprofloxacin, promise
One or more of mixtures in Flucloxacillin, gatifloxacin and fleraxacin.
3. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that the mass ratio of the quality of the persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:
(1000~5000)。
4. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that the mass ratio of the quality of the persulfuric acid hydrogen salt described in step 1 and the water of pretreatment is 1:
(5000~8000)。
5. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that step 3 1. described in the power of ultrasonic oscillation instrument be the W of 100 W ~ 1000.
6. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that 1. step 3 plants the Fe3O4Particle diameter be the nm of 15 nm ~ 500.
7. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that 1. step 3 plants the Fe3O4Particle diameter be the nm of 500 nm ~ 2000.
8. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that the dosage of the magnetic bismuth oxyiodide described in step 4 is the mg/L of 1 mg/L ~ 10.
9. one kind according to claim 1 goes water removal moderate resistance using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of raw element, it is characterised in that visible light source power described in step 4 is the W of 100 W ~ 1000.
10. one kind according to claim 1 is gone in water removal using persulfuric acid hydrogen salt and magnetic bismuth oxyiodide visible light catalytic
The method of antibiotic, it is characterised in that the external magnetic field strength described in step 5 is 0.01T ~ 1T.
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