CN109721134A - A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery - Google Patents
A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery Download PDFInfo
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Abstract
A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, it is related to a kind of preparation method of membrane electrode.The invention aims to solve the problems, such as that existing film air filter cathode preparation process is complicated, compressive property is poor.Preparation method: one, homogeneous phase solution is prepared；Two, conductive film liquid is prepared；Three, coating sintering obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery.Advantage: one, preparation method is simple, and sintering temperature is low, prepares less energy consumption.Two, conductivity reaches 10mS/cm or more, has good compressive property.Present invention is mainly used for microbial films to filter battery.
Description
Technical field
The present invention relates to a kind of preparation methods of membrane electrode.
Background technique
Currently, the multiple predicament such as resources water shortage, water quality water shortage and engineering water shortage leads to China's water crisis step fastener
It forces, water shortage pressure is growing day by day.And quantity of wastewater effluent rises year by year, make quality of water environment deteriorate and the problem of shortage of water resources more
For protrusion.The organic carbon source for containing a large amount of biodegradabilities in waste water, is carried out recycling treatment, can not only eliminate it to water
The pollution of environment, and water imbalance between supply and demand can be alleviated.Microbiological fuel cell is a kind of potential sustainable energy technology, with
Conventional waste water processing technique is compared, and be can be realized the synchronous progress that energy recovery is efficiently removed with pollutant, is at current waste water
Research hotspot in reason field.
In functional form microbiological fuel cell, film air filter cathode microbial fuel cell have produce electricl energy and
The good advantage of effluent quality, can not only participate in the electrochemical process of system, be alternatively arranged as filter membrane to retain pollutant.Film mistake
Filter formula air cathode has chemical property and strainability, has broad application prospects in field of waste water treatment.Long-term
In operational process, film air filter cathode internal structure can because swabbing action and deformation occurs, the pore-size distribution of electrode and
Porosity can change, and then influence the transmission of oxygen and the filtering cutoff performance of filtering electrode.To film air filter yin
For pole, water pressure resistance performance plays a significant role, in the longtime running of filtering electrode, electrode interior structure and pore-size distribution
Stability can enhance water pressure resistance performance, provide stable water flux, retention, oxygen and electron transmission.So for film filtering type
For air cathode, not only there is good chemical property, filtering cutoff performance, antifouling property, also to have good
Water pressure resistance performance.
Deformation is larger under water pressure for conventional roll-in cathode, non-reversible deformation occurs, and chemical property is unstable, electricity
Current density amplitude of variation is up to 50%.
Summary of the invention
The invention aims to solve, existing film air filter cathode preparation process is complicated, compressive property is poor is asked
Topic, and a kind of preparation method of conductive sintering membrane electrode suitable for microbial film filtering battery is provided.
A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, specifically makes according to the following steps
It is standby:
One, it prepares homogeneous phase solution: macromolecule resin material and pore former being dissolved in solvent I, obtain homogeneous phase solution, homogeneously
Solution carries out stewing process, obtains high-molecular resin solution；The macromolecule resin material and pore former mass ratio be 12:1~
6；The mass ratio of the macromolecule resin material and solvent I is 12:70~100；The solvent I be DMAC N,N' dimethyl acetamide or
N,N-dimethylformamide；
Two, it prepares conductive film liquid: solvent is added in high-molecular resin solution, carbon skeleton material, dopant I and dopant II
In II, it is uniformly mixed, obtains conductive film liquid；The carbon skeleton material and dopant II are not substances of the same race；The carbon skeleton material
The mass ratio of material and macromolecule resin material in high-molecular resin solution is 12:1~3；The carbon skeleton material and dopant I
Mass ratio is 8:1~3；The mass ratio of the carbon skeleton material and dopant II is 100:1~25, the quality of dopant I with it is molten
The ratio of the volume of agent II is 1g:4mL~25mL；The dopant II is carbon black, graphene or carbon nanotube；The solvent II is
N,N-dimethylformamide or methyl pyrrolidone；
Three, conductive film liquid: being coated on the two sides of collector, is subsequently placed in baking oven and is sintered molding by coating sintering,
Obtain the conductive sintering membrane electrode for being suitable for microbial film filtering battery；Conductive the burning suitable for microbial film filtering battery
The load capacity of carbon skeleton material is 20mg/cm on conjunctiva electrode2~30mg/cm2。
The invention has the advantages that
One, the present invention is prepared for air filter cathode with sintering process, and preparation method is simple, and sintering temperature is low, prepares energy
Consumption is few；It is sintered membrane electrode and is suitable for microbial film filtering battery, improve the effluent quality of system.
Two, dopant II of the present invention using carbon black, graphene or carbon nanotube as sintering membrane electrode, improves sintering
The electric conductivity (conductivity reaches 10mS/cm or more) of membrane electrode, and before and after pressurization be sintered membrane electrode stable electrochemical property,
With good compressive property.
Detailed description of the invention
Fig. 1 is conductivity column diagram, and a indicates the conduction for being suitable for microbial film filtering battery that embodiment 1 obtains in figure
It is sintered the conductivity of membrane electrode, b indicates the conductivity for the film air filter cathode that comparative example obtains；
Fig. 2 is the power density curve of microbial fuel cells system, the 1 expression micro- life of the doped sintered membrane electrode of carbon black in figure
The power density curve of object fuel cell system, 2 indicate the power density of blank sintering membrane electrode microbial fuel cells system
Curve；
Fig. 3 is the effluent COD concentration column diagram of microbial fuel cells system, and a indicates the doped sintered film of carbon black in figure
The effluent COD concentration column diagram of electrode microbial fuel cells system, b indicate that blank is sintered membrane electrode microbiological fuel cell system
The effluent COD concentration column diagram of system；
Fig. 4 is pressurization front and back LSV curve, the doped sintered membrane electrode microbiological fuel cell of carbon black before 1 expression is pressurizeed in figure
The LSV curve of system, 2 indicate pressurization 30kPa after the doped sintered membrane electrode microbial fuel cells system of carbon black LSV curve, 3
Indicate the LSV curve of blank sintering membrane electrode microbial fuel cells system before pressurizeing, blank is sintered after 4 expression pressurization 30kPa
The LSV curve of membrane electrode microbial fuel cells system；
Fig. 5 is carbon black doped sintered membrane electrode microbial fuel cells system pressurization front and back EIS curve, and 1 expression adds in figure
The EIS curve of the doped sintered membrane electrode microbial fuel cells system of preceding carbon black is pressed, carbon black doping is burnt after 2 expression pressurization 30kPa
The EIS curve of conjunctiva electrode microbial fuel cells system；
Fig. 6 is blank sintering membrane electrode microbial fuel cells system pressurization front and back EIS curve, in figure before 3 expression pressurizations
Blank is sintered the EIS curve of membrane electrode microbial fuel cells system, and 4 indicate the blank sintering micro- life of membrane electrode after pressurization 30kPa
The EIS curve of object fuel cell system.
Specific embodiment
Specific embodiment 1: present embodiment is a kind of conductive sintering membrane electrode suitable for microbial film filtering battery
Preparation method, specifically prepare according to the following steps:
One, it prepares homogeneous phase solution: macromolecule resin material and pore former being dissolved in solvent I, obtain homogeneous phase solution, homogeneously
Solution carries out stewing process, obtains high-molecular resin solution；The macromolecule resin material and pore former mass ratio be 12:1~
6；The mass ratio of the macromolecule resin material and solvent I is 12:70~100；The solvent I be DMAC N,N' dimethyl acetamide or
N,N-dimethylformamide；
Two, it prepares conductive film liquid: solvent is added in high-molecular resin solution, carbon skeleton material, dopant I and dopant II
In II, it is uniformly mixed, obtains conductive film liquid；The carbon skeleton material and dopant II are not substances of the same race；The carbon skeleton material
The mass ratio of material and macromolecule resin material in high-molecular resin solution is 12:1~3；The carbon skeleton material and dopant I
Mass ratio is 8:1~3；The mass ratio of the carbon skeleton material and dopant II is 100:1~25, the quality of dopant I with it is molten
The ratio of the volume of agent II is 1g:4mL~25mL；The dopant II is carbon black, graphene or carbon nanotube；The solvent II is
N,N-dimethylformamide or methyl pyrrolidone；
Three, conductive film liquid: being coated on the two sides of collector, is subsequently placed in baking oven and is sintered molding by coating sintering,
Obtain the conductive sintering membrane electrode for being suitable for microbial film filtering battery；Conductive the burning suitable for microbial film filtering battery
The load capacity of carbon skeleton material is 20mg/cm on conjunctiva electrode2~30mg/cm2。
It is formed in an oven using low-temperature sintering in present embodiment step 3.
Sintering process is common method in film preparation, with the method prepare film have good mechanical strength, have compared with
High bending strength and chemical stability, is able to bear higher backwashing pressure.Therefore sintering process is used for air cathode
Preparation is conducive to the anti-stress energy for improving air cathode.Carbon-based material has good electric conductivity, can be improved by being blended
The electric conductivity of air cathode.The cheap of carbon-based material, large specific surface area, good conductivity, interface performance are excellent, are suitable as
The catalyst of film air filter cathode.Present embodiment is suitable for the conduction of microbial film filtering battery using sintering process preparation
It is sintered membrane electrode, the conductive sintering membrane electrode suitable for microbial film filtering battery is used as film air filter cathode, is made
Standby simple process, has good chemical property and compressive property, is able to maintain original pore structure under high pressure
With stable chemical property.
Specific embodiment 2: the difference of present embodiment and specific embodiment one is: height described in step 1
Molecule resin material is polyvinyl chloride, Kynoar or polysulfones.Other are same as the specific embodiment one.
Specific embodiment 3: one of present embodiment and specific embodiment one or two difference are: institute in step 1
Stating pore former is polyvinylpyrrolidone k30, polyvinylpyrrolidone k90 or cetomacrogol 1000.Other and specific embodiment party
Formula one or two is identical.
Specific embodiment 4: one of present embodiment and specific embodiment one to three difference are: will in step 1
Macromolecule resin material and pore former are dissolved in solvent I, are protected from light stirring at room temperature to homogeneous phase solution is formed, are subsequently placed in dark place
12h is stood, high-molecular resin solution is obtained.Other are identical as specific embodiment one to three.
Specific embodiment 5: one of present embodiment and specific embodiment one to four difference are: institute in step 2
Stating carbon skeleton material is electrical conductive activities carbon dust, carbon black or graphite.Other are identical as specific embodiment one to four.
Specific embodiment 6: one of present embodiment and specific embodiment one to five difference are: institute in step 2
Stating dopant I is electrically conductive polyaniline or zirconium oxide.Other are identical as specific embodiment one to five.
Specific embodiment 7: one of present embodiment and specific embodiment one to six difference are: will in step 2
High-molecular resin solution, carbon skeleton material, dopant I and dopant II are added in solvent II, first ultrasonic mixing 30min, then
It stirs evenly, obtains conductive film liquid.Other are identical as specific embodiment one to six.
Specific embodiment 8: one of present embodiment and specific embodiment one to seven difference are: institute in step 3
The collector stated is stainless (steel) wire or titanium net, and thickness 0.3mm~0.6mm of stainless (steel) wire, aperture is 45 mesh~75 mesh；Titanium net
Thickness 0.3mm~0.6mm, aperture are 45 mesh~75 mesh.Other are identical as specific embodiment one to seven.
Specific embodiment 9: one of present embodiment and specific embodiment one to eight difference are: institute in step 3
Coating is stated as blade coating or is brushed.Other are identical as specific embodiment one to eight.
Specific embodiment 10: one of present embodiment and specific embodiment one to nine difference are: will in step 3
Conductive film liquid is coated on the two sides of collector, is subsequently placed in baking oven, temperature be 40 DEG C~75 DEG C at be sintered 60min~
300min obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery.Other and one to nine phase of specific embodiment
Together.
The content of present invention is not limited only to the content of the respective embodiments described above, the group of one of them or several specific embodiments
The purpose of invention also may be implemented in contract sample.
Using following verification experimental verifications effect of the present invention
Embodiment 1: a kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, it is specific by with
Lower step preparation:
One, homogeneous phase solution is prepared: by 12g polyvinyl chloride (degree of polymerization of polyvinyl chloride is 1200) and 6g polyvinylpyrrolidine
Ketone k30 is dissolved in 87mL n,N-dimethylacetamide, is protected from light stirring 12h at room temperature and is subsequently placed in until forming homogeneous phase solution
Dark place stands 12h, obtains high-molecular resin solution；The mass fraction of polyvinyl chloride is 12% in the high-molecular resin solution；
The mass fraction of polyvinylpyrrolidone k30 is 6% in the high-molecular resin solution；N, N- in the high-molecular resin solution
The mass fraction of dimethyl acetamide is 82%；
Two, conductive film liquid is prepared: 0.810g high-molecular resin solution, 0.583g electrical conductive activities carbon dust, 0.146g is conductive
Polyaniline and 0.087g carbon black are added in 2mL methyl pyrrolidone, then first ultrasonic mixing 30min stirs evenly, obtains conduction
Film liquid；
Three, coating sintering: conductive film liquid is uniformly scratched in the two sides of stainless (steel) wire using glass bar, is subsequently placed in baking oven
In, it is sintered 120min at being 65 DEG C in temperature, obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery；It is described suitable
The load capacity of electrical conductive activities carbon dust is 26.5mg/cm on the conductive sintering membrane electrode of microbial film filtering battery2；It is described not
The thickness 0.4mm of rust steel mesh, aperture are 60 mesh, diameter 3.5cm.
Embodiment 2: a kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, it is specific by with
Lower step preparation:
One, homogeneous phase solution is prepared: by 12g polyvinyl chloride (degree of polymerization of polyvinyl chloride is 1200) and 6g polyvinylpyrrolidine
Ketone k30 is dissolved in 87mL n,N-dimethylacetamide, is protected from light stirring 12h at room temperature and is subsequently placed in until forming homogeneous phase solution
Dark place stands 12h, obtains high-molecular resin solution；The mass fraction of polyvinyl chloride is 12% in the high-molecular resin solution；
The mass fraction of polyvinylpyrrolidone k30 is 6% in the high-molecular resin solution；N, N- in the high-molecular resin solution
The mass fraction of dimethyl acetamide is 82%；
Two, it prepares conductive film liquid: first is added in high-molecular resin solution, electrical conductive activities carbon dust, electrically conductive polyaniline and carbon black
In base pyrrolidones, then first ultrasonic mixing 30min stirs evenly, obtains conductive film liquid；The high-molecular resin solution with lead
The mass ratio of electroactive carbon dust is 8.3:6；The mass ratio of the electrically conductive polyaniline and electrical conductive activities carbon dust is 1.5:6；The carbon
The black mass ratio with electrical conductive activities carbon dust is 0.3:6；The mass ratio of the methyl pyrrolidone and electrical conductive activities carbon dust is 12:6；
Three, coating sintering: conductive film liquid is uniformly scratched in the two sides of stainless (steel) wire using glass bar, is subsequently placed in baking oven
In, it is sintered 120min at being 65 DEG C in temperature, obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery；It is described suitable
The load capacity of electrical conductive activities carbon dust is 26.5mg/cm on the conductive sintering membrane electrode of microbial film filtering battery2；It is described not
The thickness 0.4mm of rust steel mesh, aperture are 60 mesh, diameter 3.5cm.
Embodiment 3: a kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, it is specific by with
Lower step preparation:
One, homogeneous phase solution is prepared: by 12g polyvinyl chloride (degree of polymerization of polyvinyl chloride is 1200) and 6g polyvinylpyrrolidine
Ketone k30 is dissolved in 87mL n,N-dimethylacetamide, is protected from light stirring 12h at room temperature and is subsequently placed in until forming homogeneous phase solution
Dark place stands 12h, obtains high-molecular resin solution；The mass fraction of polyvinyl chloride is 12% in the high-molecular resin solution；
The mass fraction of polyvinylpyrrolidone k30 is 6% in the high-molecular resin solution；N, N- in the high-molecular resin solution
The mass fraction of dimethyl acetamide is 82%；
Two, it prepares conductive film liquid: first is added in high-molecular resin solution, electrical conductive activities carbon dust, electrically conductive polyaniline and carbon black
In base pyrrolidones, then first ultrasonic mixing 30min stirs evenly, obtains conductive film liquid；The high-molecular resin solution with lead
The mass ratio of electroactive carbon dust is 8.3:6；The mass ratio of the electrically conductive polyaniline and electrical conductive activities carbon dust is 1.5:6；The carbon
The black mass ratio with electrical conductive activities carbon dust is 1.08:6；The mass ratio of the methyl pyrrolidone and electrical conductive activities carbon dust is 15:
6；
Three, coating sintering: conductive film liquid is uniformly scratched in the two sides of stainless (steel) wire using glass bar, is subsequently placed in baking oven
In, it is sintered 120min at being 65 DEG C in temperature, obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery；It is described suitable
The load capacity of electrical conductive activities carbon dust is 26.5mg/cm on the conductive sintering membrane electrode of microbial film filtering battery2；It is described not
The thickness 0.4mm of rust steel mesh, aperture are 60 mesh, diameter 3.5cm.
Comparative example: dopant II (carbon black) is not added:
One, homogeneous phase solution is prepared: by 12g polyvinyl chloride (degree of polymerization of polyvinyl chloride is 1200) and 6g polyvinylpyrrolidine
Ketone k30 is dissolved in 87mL n,N-dimethylacetamide, is protected from light stirring 12h at room temperature and is subsequently placed in until forming homogeneous phase solution
Dark place stands 12h, obtains high-molecular resin solution；The mass fraction of polyvinyl chloride is 12% in the high-molecular resin solution；
The mass fraction of polyvinylpyrrolidone k30 is 6% in the high-molecular resin solution；N, N- in the high-molecular resin solution
The mass fraction of dimethyl acetamide is 82%；
Two, conductive film liquid is prepared: 0.810g high-molecular resin solution, 0.583g electrical conductive activities carbon dust and 0.146g is conductive
Polyaniline is added in 2mL methyl pyrrolidone, then first ultrasonic mixing 30min stirs evenly, obtains conductive film liquid；
Three, coating sintering: conductive film liquid is uniformly scratched in the two sides of stainless (steel) wire using glass bar, is subsequently placed in baking oven
In, it is sintered 120min at being 65 DEG C in temperature, obtains film air filter cathode；It is conductive living on the film air filter cathode
Property carbon dust load capacity be 26.5mg/cm2；The thickness 0.4mm of the stainless (steel) wire, aperture are 60 mesh, diameter 3.5cm.
The conductive sintering membrane electrode for being suitable for microbial film filtering battery and comparative example obtain to embodiment 1 obtains
The electric conductivity of film air filter cathode detected, as shown in Figure 1, Fig. 1 is conductivity column diagram, a indicates to implement in figure
What example 1 obtained is suitable for the conductivity of the conductive sintering membrane electrode of microbial film filtering battery, and b indicates what comparative example obtained
The conductivity of film air filter cathode；As shown in Figure 1, what embodiment 1 obtained is suitable for leading for microbial film filtering battery
The conductivity of electricity sintering membrane electrode reaches 19.8mS/cm, and the conductivity for the film air filter cathode that comparative example obtains reaches
To 0.5mS/cm, so the conductivity for the conductive sintering membrane electrode for being suitable for microbial film filtering battery that embodiment 1 obtains is
39.6 times of the conductivity for the film air filter cathode that comparative example obtains.
The conductive sintering membrane electrode for being suitable for microbial film filtering battery and comparative example that embodiment 1 obtains are obtained
Film air filter cathode be respectively applied in microbial fuel cells system, it is micro- to respectively obtain the doped sintered membrane electrode of carbon black
Biofuel cell system and blank are sintered membrane electrode microbial fuel cells system.
1, output power detection is carried out, as shown in Fig. 2, Fig. 2 is the power density curve of microbial fuel cells system, figure
In 1 indicate the doped sintered membrane electrode microbial fuel cells system of carbon black power density curve, 2 indicate blank be sintered membrane electrodes
The power density curve of microbial fuel cells system, as shown in Figure 2, the doped sintered membrane electrode microbiological fuel cell of carbon black
The output power of system is 1300mW/m2, the output power that blank is sintered membrane electrode microbial fuel cells system is 700mW/
m2, increase 85.71%.
2, under influent COD same case, detection water outlet COD, as shown in figure 3, Fig. 3 is microbial fuel cells system
Effluent COD concentration column diagram, a indicates that the water outlet COD of the doped sintered membrane electrode microbial fuel cells system of carbon black is dense in figure
Column diagram is spent, b indicates the effluent COD concentration column diagram of blank sintering membrane electrode microbial fuel cells system；It can by Fig. 3
Know, the COD value of the doped sintered membrane electrode microbial fuel cells system final outflow water of carbon black is 24mg/L, and blank is sintered membrane electrode
The COD value of microbial fuel cells system final outflow water is 110mg/L, reduces 78.18%.
3, compressive property detection is carried out under the conditions of 30kPa water pressure, as shown in Figure 4, Figure 5 and Figure 6, before Fig. 4 is pressurization
LSV curve afterwards, the 1 LSV curve for indicating the doped sintered membrane electrode microbial fuel cells system of carbon black before pressurizeing in figure, 2 indicate
The LSV curve of the doped sintered membrane electrode microbial fuel cells system of carbon black after pressurization 30kPa, 3 indicate blank sintering before pressurizeing
The LSV curve of membrane electrode microbial fuel cells system, 4 indicate blank sintering membrane electrode Microbial fuel electricity after pressurization 30kPa
The LSV curve of cell system, Fig. 5 are carbon black doped sintered membrane electrode microbial fuel cells system pressurization front and back EIS curves, in figure
1 indicates the EIS curve of the doped sintered membrane electrode microbial fuel cells system of carbon black before pressurizeing, and 2 indicate carbon black after pressurization 30kPa
The EIS curve of doped sintered membrane electrode microbial fuel cells system, Fig. 6 are blank sintering membrane electrode microbiological fuel cell systems
System pressurization front and back EIS curve, the 3 EIS curve for indicating blank sintering membrane electrode microbial fuel cells system before pressurizeing in figure, 4
The EIS curve of blank sintering membrane electrode microbial fuel cells system after expression pressurization 30kPa, as shown in Figure 4, in 30kPa
Under the conditions of water pressure, under -0.1V voltage, the current density of the doped sintered membrane electrode microbial fuel cells system of carbon black reaches
9mA/cm2；The current density that blank is sintered membrane electrode microbial fuel cells system is 1.6mA/cm2；The doped sintered film electricity of carbon black
The current density of atomic biofuel cell system is the current density of blank sintering membrane electrode microbial fuel cells system
5.6 times, pass through the electrochemistry of the doped sintered membrane electrode microbial fuel cells system pressurization of carbon black known to Fig. 4-6 front and back electrode
It can be without significant change.
4, electric charge transfer internal resistance detection: the electric charge transfer internal resistance of the doped sintered membrane electrode microbial fuel cells system of carbon black
For 1.1 Ω, the electric charge transfer internal resistance that blank is sintered membrane electrode microbial fuel cells system is 378 Ω.
Claims (10)
1. a kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery, it is characterised in that it is by following
Step preparation:
One, it prepares homogeneous phase solution: macromolecule resin material and pore former being dissolved in solvent I, obtain homogeneous phase solution, homogeneous phase solution
Stewing process is carried out, high-molecular resin solution is obtained；The macromolecule resin material and pore former mass ratio are 12:1~6；Institute
The mass ratio for stating macromolecule resin material and solvent I is 12:70~100；The solvent I is DMAC N,N' dimethyl acetamide or N, N-
Dimethylformamide；
Two, it prepares conductive film liquid: solvent II is added in high-molecular resin solution, carbon skeleton material, dopant I and dopant II
In, it is uniformly mixed, obtains conductive film liquid；The carbon skeleton material and dopant II are not substances of the same race；The carbon skeleton material
Mass ratio with macromolecule resin material in high-molecular resin solution is 12:1~3；The matter of the carbon skeleton material and dopant I
Amount is than being 8:1~3；The mass ratio of the carbon skeleton material and dopant II is 100:1~25, the quality and solvent of dopant I
The ratio of II volume is 1g:4mL~25mL；The dopant II is carbon black, graphene or carbon nanotube；The solvent II is N,
Dinethylformamide or methyl pyrrolidone；
Three, coating sintering: conductive film liquid is coated on to the two sides of collector, is subsequently placed in baking oven and is sintered molding, obtain
Conductive sintering membrane electrode suitable for microbial film filtering battery；The conductive sintered membrane suitable for microbial film filtering battery
The load capacity of carbon skeleton material is 20mg/cm on electrode2~30mg/cm2。
2. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 1
Method, it is characterised in that macromolecule resin material described in step 1 is polyvinyl chloride, Kynoar or polysulfones.
3. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 2
Method, it is characterised in that pore former described in step 1 is polyvinylpyrrolidone k30, polyvinylpyrrolidone k90 or poly- second two
Alcohol 1000.
4. a kind of system of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 1,2 or 3
Preparation Method, it is characterised in that macromolecule resin material and pore former are dissolved in solvent I in step 1, are protected from light stirring at room temperature
To homogeneous phase solution is formed, it is subsequently placed in dark place and stands 12h, obtain high-molecular resin solution.
5. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 1
Method, it is characterised in that carbon skeleton material described in step 2 is electrical conductive activities carbon dust, carbon black or graphite.
6. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 5
Method, it is characterised in that dopant I described in step 2 is electrically conductive polyaniline or zirconium oxide.
7. a kind of according to claim 1, system of the conductive sintering membrane electrode suitable for microbial film filtering battery described in 5 or 6
Preparation Method, it is characterised in that high-molecular resin solution, carbon skeleton material, dopant I and dopant II be added in step 2 molten
In agent II, then first ultrasonic mixing 30min stirs evenly, obtains conductive film liquid.
8. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 1
Method, it is characterised in that collector described in step 3 be stainless (steel) wire or titanium net, thickness 0.3mm~0.6mm of stainless (steel) wire,
Aperture is 45 mesh~75 mesh；Thickness 0.3mm~0.6mm of titanium net, aperture are 45 mesh~75 mesh.
9. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 8
Method, it is characterised in that coating described in step 3 is blade coating or brushes.
10. a kind of preparation side of conductive sintering membrane electrode suitable for microbial film filtering battery according to claim 1
Method, it is characterised in that conductive film liquid is coated on to the two sides of collector in step 3, is subsequently placed in baking oven, is 40 DEG C in temperature
It is sintered 60min~300min at~75 DEG C, obtains the conductive sintering membrane electrode for being suitable for microbial film filtering battery.
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