CN103990444A - Preparation method of graphene-homemade TiO2 nanowire photocatalyst - Google Patents
Preparation method of graphene-homemade TiO2 nanowire photocatalyst Download PDFInfo
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- CN103990444A CN103990444A CN201410243482.3A CN201410243482A CN103990444A CN 103990444 A CN103990444 A CN 103990444A CN 201410243482 A CN201410243482 A CN 201410243482A CN 103990444 A CN103990444 A CN 103990444A
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Abstract
The invention relates to a preparation method of a catalyst, and in particular relates to a preparation method of a graphene-homemade TiO2 nanowire photocatalyst. The preparation method comprises the steps of firstly, preparing graphite oxide by graphite powder; then preparing amorphous TiO2 by a sol-gel method; putting amorphous TiO2 into alkali liquor to prepare a TiO2 nanowire by a hydrothermal method; carrying out hydrothermal treatment on the TiO2 nanowire and graphite oxide to obtain TiO2 supported on graphene; and washing by water, washing by alcohol and drying. By using the graphene-homemade TiO2 nanowire photocatalyst, the degradation rate of methylene blue trihydrate reaches up to 100% after irradiation is performed for 50 minutes under simulated sunlight. The TiO2 xerogel prepared by the sol-gel method has the amorphous TiO2 structure; when TiO2 is supported onto graphene, the structure of the nanowire is easily improved; the raw material is easily available and low in price. Therefore, the homemade TiO2 xerogel can be used for replacing P25 to be taken as raw material, so that the cost is lowered, and the raw material is easily available and low in cost; the graphene-homemade TiO2 nanowire photocatalyst is high in recycling performance and has good industrial application prospect.
Description
Technical field
The present invention relates to a kind of preparation method of catalyst, particularly relate to a kind of preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst.
Background technology
Titanium dioxide has another name called titanium dioxide, and chemical formula is TiO
2, nontoxic, be water-fast white solid or pulverulent solids.Because it has, unique light is stable, resist chemical performance, and most of organic matters are had to very strong absorption degradation ability, and stable performance, and cheap, nontoxic, photocatalytic activity is strong, and is widely used in photocatalyst material.But, because its wider energy gap causes absorbing the limited in one's ability of visible ray, recycle and reuse difficulty, therefore to TiO
2the modification preparation of photochemical catalyst, thus it is strong to obtain extinction ability, and the good catalyst of recycling performance, becomes research TiO
2the important topic of photochemical catalyst.
For improving TiO
2photocatalytic activity, by TiO
2make nano wire, its free settling, easily recovery, and the specific area of this structure are increased greatly, can effectively improve the photocatalysis performance of catalyst.
Graphene is a kind of carbon atomic layer of monatomic thickness of two-dimensional structure, due to its ultra-thin thickness, and very large specific area, and electric conductivity is good, and it is widely used in the field such as electronic technology, energy storage.Due to the good characteristic of Graphene, by TiO
2nano wire and Graphene are combined with each other, and its combination property is brought into play better, and photocatalysis to degrade organic matter is had to facilitation.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst, homemade amorphous TiO for the method
2for raw material, adopt hydro-thermal method to prepare TiO
2the method of nano wire, as carrier, obtains Graphene-TiO with Graphene
2nano thread structure, catalytic efficiency is high, and recycling performance is stable, is nano-TiO in the preparation of nano composite material and field of fine chemical
2preparation provide a kind of efficiently, new way cheaply.
The object of the invention is to be achieved through the following technical solutions:
The preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst, described method comprises and is prepared as follows step:
A, in round-bottomed flask, butyl titanate is slowly joined under stirring condition in 30mL absolute ethyl alcohol, stir after 30min, add 0.5mL acetylacetone,2,4-pentanedione, continue to stir 1h, the solution A that obtains mixing, then 6mL water is fully mixed with 15mL ethanol, 3mL glacial acetic acid, form B liquid, under agitation, B solution is splashed in A solution with the speed of 1/s, wait to drip off and continue to stir, until form gel, dry at 80 DEG C,, grind, obtain unformed TiO
2;
B, the amorphous TiO that step a is obtained
2being placed in concentration is that 5-20mol/L potassium hydroxide solution mixes, and is transferred in hydrothermal reaction kettle, and hydrothermal temperature is 100-220 DEG C, and the time is 5-24 hour, cooling, washing, i.e. and pickling, washing, alcohol wash, dry, obtain TiO
2nano-material;
C, taking graphite powder as raw material, adopt Hummers method to obtain graphene oxide, the graphite oxide obtaining is dissolved in the mixed liquor of ethanol and water, ultrasonic processing 30-90 minute, obtaining concentration is the graphene oxide solution of 0.1-2.5mg/ml;
D, by the TiO obtaining in step b
2nano wire mixes with the graphite oxide that c in step obtains, and moves in hydrothermal reaction kettle, and reaction temperature is 120-220 DEG C, and the reaction time is 1-10h, is cooled to after room temperature, and washing, alcohol are washed till neutrality, and product is dry under temperature 60 C, obtains Graphene-TiO
2the composite powder material of nano wire.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, described TiO
2for even line structure, pipe range is 30-100nm, and diameter is in 15nm left and right, with graphene-supported; B step is taking amorphous TiO2 as preparation TiO
2the raw material of nano wire.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, described carrier is taking graphite oxide as raw material, changes Graphene carrier after hydrothermal treatment consists into.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, described potassium hydroxide solution concentration is 5-20mol/L.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, described hydrothermal temperature is for the first time 100-220 DEG C; The hydro-thermal time is 5-24 hour for the first time.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, described graphite oxide and self-control TiO
2mass ratio be 1:300-1:50.
The preparation method of described Graphene-self-control TiO2 nano wire photochemical catalyst, the purposes of composite catalyst is the catalyst material of light degradation organic pollution.
Advantage of the present invention and effect are:
The present invention adopts hydrothermal synthesis method to synthesize Graphene-self-control TiO
2nano wire photochemical catalyst, wherein adopts sol-gal process to synthesize amorphous TiO
2, utilize Graphene and TiO
2the good photoelectricity performance of nano wire, by both compound Graphene-self-control TiO that makes
2nano wire photochemical catalyst.The TiO being made by sol-gal process
2xerogel is the impalpable structure of titanium dioxide, and this structure particles is loose, does not also reunite and shapes, and when with graphene-supported, more easily improves nano thread structure.Adopt homemade TiO
2xerogel replaces P25 to do raw material, can greatly reduce costs.
That the preparation method of nano material the present invention relates to has is with low cost, environmental friendliness, the advantage such as reproducible.There is good prospects for commercial application.
The composite catalyst preparation technology that the method obtains is simple, and technological parameter is easy to control, is easy to large-scale production.The composite catalyst obtaining has larger specific area, can adsorb more dyestuff.The composite catalyst degradation rate obtaining is fast.The composite catalyst recycling rate of waterused obtaining is high, through can inactivation after light degradation repeatedly.
Brief description of the drawings
Fig. 1 is graphene-supported TiO
2the TEM figure of photochemical catalyst;
Fig. 2 is graphene-supported TiO
2photochemical catalyst is to the degradation rate of methylene blue curve map (with commercially available P25 comparison) over time;
Fig. 3 is graphene-supported TiO
2the impact of the recycling number of times of photochemical catalyst on methylene blue clearance.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the invention will be further described.
1. general principle of the present invention: for improving TiO
2photocatalytic activity, nano-powder is made to nano wire, makes its free settling, easily reclaims, and the specific area of this structure increases greatly, can effectively improve the photocatalysis performance of catalyst.Because its wider energy gap causes absorbing the limited in one's ability of visible ray, recycle and reuse difficulty, industrial general employing is to TiO
2photochemical catalyst adds carrier to carry out modification and solves.
Graphene, as a kind of novel nano material with carbon element, is exactly in fact by monolayer carbon atom, the two dimensional crystal forming by C-C key, and then each carbon atom is contributed a not pi-electron formation π track of Cheng Jian again, is that electronics can move freely in whole crystal.The Graphene of structural integrity is by C atom Sp
2hydridization generate not containing the hexatomic ring composition of any labile bond, its thickness only has 0.334 nm, chemical stability is high, surface is inert condition, a little less than the interaction of medium.Just because of its geometry of this uniqueness, make Graphene there is extraordinary characteristic: 1. electron motion speed is high; 2. good light transmission; 3. intensity, extreme hardness; 4. specific area is large; 5. good heat-transfer etc.
Due to the special electronic structure of Graphene, Graphene and the compound photocatalyst for degrading methylene blue of titanium dioxide are had to good degradation effect.Its mechanism can be explained from following three aspects: 1. Graphene add the absorption property that has increased catalyst, the molecule of methylene blue can be transferred to the surface of catalyst from solution, π-πconjugation between the aromatic series region of Graphene and methylene blue, has increased the absorption property of catalyst to dyestuff; 2. Graphene add the absorption that can expand light, promote more effectively utilizing of light; 3. can effectively avoid the compound of electron-hole pair adding of Graphene, thereby effectively improve TiO
2photocatalysis efficiency.
But TiO
2powder is difficult for loading on Graphene, and the inhomogeneous easy generation agglomeration of load, and this is to the degradation efficiency of composite catalyst heavy discount greatly.Therefore in order to make Graphene and TiO
2combination better, by TiO
2make TiO
2nano thread structure, then by Graphene and TiO
2nano wire is combined with each other, and utilizes both advantages to act synergistically mutually, the composite photo-catalyst obtaining.
2. basic scheme of the present invention:
The preparation of Graphene-self-control TiO2 nano wire photochemical catalyst of the present invention is divided into following steps and carries out: first, make amorphous TiO by oneself
2, then by amorphous TiO
2make TiO
2nano wire, then prepares graphite oxide taking graphite powder as raw material, finally by graphite oxide and TiO
2nano wire reaction, obtains graphene-supported TiO
2nano wire composite.
3. technical method of the present invention:
Adopt sol-gel process to make amorphous TiO
2, then by amorphous TiO
2adopt the method for hydro-thermal in alkali lye, to make TiO
2nano wire, washing, dry.Adopt taking graphite powder as raw material, adopt Hummers method to prepare graphite oxide, by graphite oxide and TiO
2intermediate water thermal transition is carried out in nano wire mixing, and cooling, washing, dry, makes graphene-supported TiO
2nano wire composite.
4. specific embodiment of the present invention:
Concrete steps are as follows:
A, taking graphite powder as raw material, obtain graphene oxide by Hummer method, the graphene oxide obtaining is dissolved in ethanol and water solution in, ultrasonic processing 30 minutes, stirs 30 minutes, obtains the alcohol solution of certain density graphite oxide;
B, prepare amorphous TiO with sol-gal process
2.20mL butyl titanate is slowly joined under stirring condition in 30mL absolute ethyl alcohol, stir after 30min, add 0.5mL acetylacetone,2,4-pentanedione, continue to stir 1h, the solution A that obtains mixing.Then 6mL water is fully mixed with 15mL ethanol, 3mL glacial acetic acid, form B liquid.Under vigorous stirring, with the speed of 1/s, B solution is splashed in A solution, wait to drip off and continue to stir, until form gel.Dry at 80 DEG C,, grind, obtain unformed TiO
2;
C, by the amorphous TiO in step b
2in potassium hydroxide solution as for 10mol/L, magnetic agitation 30 minutes.At 160 DEG C, carry out hydro-thermal reaction 24 hours.Naturally cooling, use successively watery hydrochloric acid, deionized water, methanol wash to neutral, dry, obtain TiO
2nano thread structure;
The alcohol solution of d, step a graphene oxide, the TiO that under agitation adds c step to make
2nano wire, ultrasonic, stir process twice (each 30 minutes) respectively, the turbid liquid that obtains mixing.By this turbid liquid hydro-thermal reaction 3h at 120 DEG C.Cooling, washing, alcohol wash, dry, grind, obtain Graphene-TiO
2nano wire composite catalyst.
Described Graphene-TiO2 nano wire composite catalyst is used in the purposes of degradating organic dye.
Claims (7)
1. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst, is characterized in that, described method comprises and is prepared as follows step:
A, in round-bottomed flask, butyl titanate is slowly joined under stirring condition in 30mL absolute ethyl alcohol, stir after 30min, add 0.5mL acetylacetone,2,4-pentanedione, continue to stir 1h, the solution A that obtains mixing, then 6mL water is fully mixed with 15mL ethanol, 3mL glacial acetic acid, form B liquid, under agitation, B solution is splashed in A solution with the speed of 1/s, wait to drip off and continue to stir, until form gel, dry at 80 DEG C,, grind, obtain unformed TiO
2;
B, the amorphous TiO that step a is obtained
2being placed in concentration is that 5-20mol/L potassium hydroxide solution mixes, and is transferred in hydrothermal reaction kettle, and hydrothermal temperature is 100-220 DEG C, and the time is 5-24 hour, cooling, washing, i.e. and pickling, washing, alcohol wash, dry, obtain TiO
2nano-material;
C, taking graphite powder as raw material, adopt Hummers method to obtain graphene oxide, the graphite oxide obtaining is dissolved in the mixed liquor of ethanol and water, ultrasonic processing 30-90 minute, obtaining concentration is the graphene oxide solution of 0.1-2.5mg/ml;
D, by the TiO obtaining in step b
2nano wire mixes with the graphite oxide that c in step obtains, and moves in hydrothermal reaction kettle, and reaction temperature is 120-220 DEG C, and the reaction time is 1-10h, is cooled to after room temperature, and washing, alcohol are washed till neutrality, and product is dry under temperature 60 C, obtains Graphene-TiO
2the composite powder material of nano wire.
2. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that described TiO
2for even line structure, pipe range is 30-100nm, and diameter is in 15nm left and right, with graphene-supported; B step is taking amorphous TiO2 as preparation TiO
2the raw material of nano wire.
3. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that, described carrier is taking graphite oxide as raw material, changes Graphene carrier after hydrothermal treatment consists into.
4. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that, described potassium hydroxide solution concentration is 5-20mol/L.
5. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that, described hydrothermal temperature is for the first time 100-220 DEG C; The hydro-thermal time is 5-24 hour for the first time.
6. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that, described graphite oxide and self-control TiO
2mass ratio be 1:300-1:50.
7. the preparation method of Graphene-self-control TiO2 nano wire photochemical catalyst according to claim 1, is characterized in that, the purposes of composite catalyst is the catalyst material of light degradation organic pollution.
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Cited By (16)
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|---|---|---|---|---|
| CN104941621A (en) * | 2015-05-26 | 2015-09-30 | 华南理工大学 | Composite photocatalyst for efficiently degrading antibiotics as well as preparation method and application thereof |
| CN104941618A (en) * | 2015-06-23 | 2015-09-30 | 南昌航空大学 | Titanium dioxide nano-particles repairing nanowires heterojunction composite material |
| CN105561963A (en) * | 2015-12-17 | 2016-05-11 | 华南理工大学 | Nano titanium dioxide/graphene oxide composite material and preparation method and application thereof |
| CN105964237A (en) * | 2016-06-07 | 2016-09-28 | 南昌航空大学 | Preparation method of graphene oxide slice and TiO2 rod heterojunction material |
| CN106410221A (en) * | 2016-12-08 | 2017-02-15 | 天津工业大学 | Method for preparing nanowire sheet intercalated structure supported type direct alcohol fuel cell catalyst |
| CN106582611A (en) * | 2016-12-16 | 2017-04-26 | 青岛海科绿邦环保科技有限公司 | Preparation method of organic pollutant photolysis catalyst |
| CN107961775A (en) * | 2016-10-19 | 2018-04-27 | 张家港市沙源检测技术有限公司 | One-dimensional TiO based on anodic oxidation2The preparation method of nano wire |
| CN108160064A (en) * | 2017-12-25 | 2018-06-15 | 中国科学院上海硅酸盐研究所 | A kind of graphene/titania composite material and its preparation method and application |
| CN108461303A (en) * | 2018-03-27 | 2018-08-28 | 哈尔滨理工大学 | The preparation method of titanium dioxide nano thread-graphene composite material |
| CN108648920A (en) * | 2018-03-27 | 2018-10-12 | 哈尔滨理工大学 | A kind of preparation method of titanium dioxide nano thread-graphene composite material |
| CN108671903A (en) * | 2018-05-18 | 2018-10-19 | 福州大学 | A kind of optic catalytic composite material of graphene package titanium dioxide diauxic growth |
| CN108904472A (en) * | 2018-09-20 | 2018-11-30 | 郑州大学第附属医院 | The modified photosensitizer nanocomposite of graphene and its application |
| CN108904473A (en) * | 2018-09-20 | 2018-11-30 | 郑州大学第附属医院 | The modified photosensitizer nanocomposite of graphene oxide and its application |
| CN109499601A (en) * | 2018-12-21 | 2019-03-22 | 宁波石墨烯创新中心有限公司 | The titania-doped preparation method with the compound of graphene of C-N titania-doped preparation method and C-N |
| CN110143640A (en) * | 2019-05-09 | 2019-08-20 | 山东理工大学 | A kind of method of butyl xanthate in photocatalytic oxidation degradation beneficiation wastewater of sulphide ore |
| CN113600160A (en) * | 2021-08-05 | 2021-11-05 | 厦门大学 | TiO with photocatalytic function2Preparation of nanowire/graphene aerogel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658786A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Method for preparing graphene-based titanium dioxide composite photocatalyst by radiation of electron beams |
| CN102205253A (en) * | 2011-04-18 | 2011-10-05 | 四川大学 | Supported photocatalyst with high activity under visible light and preparation method thereof |
| CN103178274A (en) * | 2013-03-19 | 2013-06-26 | 南通大学 | Anode catalyst of PdMo/TiO2 nanowire direct methanol fuel cell and preparation method |
| CN103464130A (en) * | 2013-09-06 | 2013-12-25 | 浙江大学 | Method of preparing titanium dioxide meso-pore material with adjustable pore diameter |
-
2014
- 2014-06-04 CN CN201410243482.3A patent/CN103990444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658786A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Method for preparing graphene-based titanium dioxide composite photocatalyst by radiation of electron beams |
| CN102205253A (en) * | 2011-04-18 | 2011-10-05 | 四川大学 | Supported photocatalyst with high activity under visible light and preparation method thereof |
| CN103178274A (en) * | 2013-03-19 | 2013-06-26 | 南通大学 | Anode catalyst of PdMo/TiO2 nanowire direct methanol fuel cell and preparation method |
| CN103464130A (en) * | 2013-09-06 | 2013-12-25 | 浙江大学 | Method of preparing titanium dioxide meso-pore material with adjustable pore diameter |
Non-Patent Citations (1)
| Title |
|---|
| XUAN PAN ET AL.: ""Comparing Graphene-TiO2 Nanowire and Graphene-TiO2 Nanoparticle Composite Photocatalysts"", 《APPLIED MATERIALS & INTERFACES》 * |
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| CN104941621B (en) * | 2015-05-26 | 2018-05-15 | 华南理工大学 | A kind of composite photo-catalyst of efficient degradation antibiotic and preparation method and application |
| CN104941621A (en) * | 2015-05-26 | 2015-09-30 | 华南理工大学 | Composite photocatalyst for efficiently degrading antibiotics as well as preparation method and application thereof |
| CN104941618A (en) * | 2015-06-23 | 2015-09-30 | 南昌航空大学 | Titanium dioxide nano-particles repairing nanowires heterojunction composite material |
| CN105561963A (en) * | 2015-12-17 | 2016-05-11 | 华南理工大学 | Nano titanium dioxide/graphene oxide composite material and preparation method and application thereof |
| CN105964237A (en) * | 2016-06-07 | 2016-09-28 | 南昌航空大学 | Preparation method of graphene oxide slice and TiO2 rod heterojunction material |
| CN107961775A (en) * | 2016-10-19 | 2018-04-27 | 张家港市沙源检测技术有限公司 | One-dimensional TiO based on anodic oxidation2The preparation method of nano wire |
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| CN106582611A (en) * | 2016-12-16 | 2017-04-26 | 青岛海科绿邦环保科技有限公司 | Preparation method of organic pollutant photolysis catalyst |
| CN108160064A (en) * | 2017-12-25 | 2018-06-15 | 中国科学院上海硅酸盐研究所 | A kind of graphene/titania composite material and its preparation method and application |
| CN108160064B (en) * | 2017-12-25 | 2020-11-10 | 中国科学院上海硅酸盐研究所 | Graphene/titanium dioxide composite material and preparation method and application thereof |
| CN108648920A (en) * | 2018-03-27 | 2018-10-12 | 哈尔滨理工大学 | A kind of preparation method of titanium dioxide nano thread-graphene composite material |
| CN108461303A (en) * | 2018-03-27 | 2018-08-28 | 哈尔滨理工大学 | The preparation method of titanium dioxide nano thread-graphene composite material |
| CN108671903A (en) * | 2018-05-18 | 2018-10-19 | 福州大学 | A kind of optic catalytic composite material of graphene package titanium dioxide diauxic growth |
| CN108904472A (en) * | 2018-09-20 | 2018-11-30 | 郑州大学第附属医院 | The modified photosensitizer nanocomposite of graphene and its application |
| CN108904473A (en) * | 2018-09-20 | 2018-11-30 | 郑州大学第附属医院 | The modified photosensitizer nanocomposite of graphene oxide and its application |
| CN109499601A (en) * | 2018-12-21 | 2019-03-22 | 宁波石墨烯创新中心有限公司 | The titania-doped preparation method with the compound of graphene of C-N titania-doped preparation method and C-N |
| CN110143640A (en) * | 2019-05-09 | 2019-08-20 | 山东理工大学 | A kind of method of butyl xanthate in photocatalytic oxidation degradation beneficiation wastewater of sulphide ore |
| CN113600160A (en) * | 2021-08-05 | 2021-11-05 | 厦门大学 | TiO with photocatalytic function2Preparation of nanowire/graphene aerogel |
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Application publication date: 20140820 |