CN105870462A - Preparation method of carbon felt/carbon nanotube/phosphomolybdic acid composite material and product and application of carbon felt/carbon nanotube/phosphomolybdic acid composite material - Google Patents
Preparation method of carbon felt/carbon nanotube/phosphomolybdic acid composite material and product and application of carbon felt/carbon nanotube/phosphomolybdic acid composite material Download PDFInfo
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- CN105870462A CN105870462A CN201610246282.2A CN201610246282A CN105870462A CN 105870462 A CN105870462 A CN 105870462A CN 201610246282 A CN201610246282 A CN 201610246282A CN 105870462 A CN105870462 A CN 105870462A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 129
- DHRLEVQXOMLTIM-UHFFFAOYSA-N phosphoric acid;trioxomolybdenum Chemical compound O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O DHRLEVQXOMLTIM-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000002131 composite material Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 14
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002048 multi walled nanotube Substances 0.000 claims abstract description 6
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000001291 vacuum drying Methods 0.000 claims description 11
- 239000010405 anode material Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 244000005700 microbiome Species 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- JOHZPMXAZQZXHR-UHFFFAOYSA-N pipemidic acid Chemical compound N1=C2N(CC)C=C(C(O)=O)C(=O)C2=CN=C1N1CCNCC1 JOHZPMXAZQZXHR-UHFFFAOYSA-N 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 16
- 239000000446 fuel Substances 0.000 abstract description 13
- 230000000813 microbial effect Effects 0.000 abstract description 8
- 238000001035 drying Methods 0.000 abstract 2
- 238000002791 soaking Methods 0.000 abstract 2
- 150000001721 carbon Chemical class 0.000 abstract 1
- 239000007774 positive electrode material Substances 0.000 abstract 1
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- FVTCRASFADXXNN-SCRDCRAPSA-N flavin mononucleotide Chemical compound OP(=O)(O)OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O FVTCRASFADXXNN-SCRDCRAPSA-N 0.000 description 21
- 229940013640 flavin mononucleotide Drugs 0.000 description 21
- FVTCRASFADXXNN-UHFFFAOYSA-N flavin mononucleotide Natural products OP(=O)(O)OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O FVTCRASFADXXNN-UHFFFAOYSA-N 0.000 description 21
- 239000011768 flavin mononucleotide Substances 0.000 description 21
- 235000019231 riboflavin-5'-phosphate Nutrition 0.000 description 21
- 238000002484 cyclic voltammetry Methods 0.000 description 6
- 230000002906 microbiologic effect Effects 0.000 description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 239000008366 buffered solution Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inert Electrodes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a preparation method of a carbon felt/carbon nanotube/phosphomolybdic acid composite material and a product and an application of the carbon felt/carbon nanotube/phosphomolybdic acid composite material. The method comprises the following steps: boiling a carbon felt with water, washing and eliminating impurities on the surface of the carbon felt by acetone and ethanol respectively, and drying the carbon felt to obtain the pretreated carbon felt for later use; treating a multi-walled carbon nanotube with a hydrochloric acid to obtain the acidified carbon nanotube; and finally, putting the pretreated carbon felt into a mixed solution containing the acidified carbon nanotube and a phosphomolybdic acid for soaking and ultrasonic treatment, further soaking the carbon felt over the night, and taking out the carbon felt for drying to obtain the carbon felt/carbon nanotube/phosphomolybdic acid composite material. The method is simple in operation step; the obtained material is relatively evenly dispersed on the carbon felt; and compared with an unmodified carbon felt, the carbon felt/carbon nanotube/phosphomolybdic acid composite material has larger active area, higher charging current and higher power density, and can be applied as a positive electrode material of a microbial fuel cell.
Description
Technical field
The invention belongs to field of material technology, be specifically related to the preparation method of carbon felt/CNT/phosphomolybdic acid composite, further relate to
Product obtained by this method and the application of this product.
Background technology
The energy is as human survival, the material base of development and the basic motive of social development, and its exploitation and use are at human society
Historical progress in play extremely important role always.Along with the exploitation of people uses, fossil energy non-renewable on the earth
The reserves in source are fewer and feweri, and global energy breach strengthens, problem of energy crisis is the most prominent.Major country in the world is all
At the various new forms of energy of active development, wherein the development and utilization research of biomass energy gets most of the attention.Currently with these organic substances
As fuel, by processing, gasify, burning, the technology such as digestion can produce energy.And microbiological fuel cell is exactly a kind of
Utilize the microbial bacterial in nature as biocatalyzer, the chemical energy in Organic substance is changed into the device of electric energy.Therefore,
Prepare high performance anode of microbial fuel cell material and become its power density of raising and the key of discharge performance.It is basic with carbon
The Two-dimensional Carbon sill of raw material, as carbon paper, carbon cloth, carbon-point, carbon felt and glassy carbon electrode make the anode ten of microbiological fuel cell
Dividing universal, these materials have high conductivity and are very suitable for microbial cell in its superficial growth, specific surface area greatly, and honest and clean
Valency is easy to get.While it is true, but all there are certain shortcomings and deficiencies.Carbon felt as selected in us, owing to its hydrophilic is bad,
The transmission of electronics can be hindered to a certain extent, and then affect discharge performance and the power output of microbiological fuel cell.Therefore,
It is necessary to improve the hydrophilic of carbon felt, to improve electric conductivity.
Summary of the invention
In view of this, an object of the present invention is to provide the preparation method of carbon felt/CNT/phosphomolybdic acid composite；This
The two of bright purpose are to provide the carbon felt/CNT/phosphomolybdic acid composite prepared by said method；The three of the purpose of the present invention
It is to provide the application of carbon felt/CNT/phosphomolybdic acid composite.
For achieving the above object, the present invention provides following technical scheme:
1, the preparation method of carbon felt/CNT/phosphomolybdic acid composite, comprises the steps:
A. the pretreatment of carbon felt: by carbon felt decocting in water, more respectively with acetone and the impurity of washing with alcohol removing Carbon felt surface, be dried,
Standby；
B. CNT it is acidified: by effective for multi-wall carbon nano-tube HCl treatment, it is thus achieved that the CNT of acidifying；
C. the preparation of carbon felt/CNT/phosphomolybdic acid composite: will be placed on containing step B through the pretreated carbon felt of step A
Gained acidifying CNT and phosphomolybdic acid mixed liquor in soak ultrasonic after, then soaked overnight, take out be dried, obtain carbon felt/
CNT/phosphomolybdic acid composite.
Preferably, described step A is that carbon felt is cut into bulk, boils to boiling 4～5h, then take out, then divide successively in water
Not Yong acetone and soak with ethanol ultrasonic 0.5h, be finally soaked in water ultrasonic 3 times, each 30min, then 60 DEG C of vacuum drying,
Standby.
Preferably, described step B is to be added by multi-walled carbon nano-tubes in concentrated hydrochloric acid (hydrochloric acid mass fraction is 37%), the most mixed
After conjunction, at 18～25 DEG C, stir 5h, separating carbon nano-tube, wash with water, 80 DEG C of vacuum drying, it is thus achieved that the carbon nanometer of acidifying
Pipe.
Preferably, described step C is that the carbon felt through the pretreatment of step A is cut into 1cm × 2cm size, then in acidifying
CNT and phosphomolybdic acid mass ratio be 1:5～10:1 mixed solution in soak ultrasonic 2h, then soaked overnight, then 60 DEG C of vacuum
Dried taking-up, washes unadsorbed firm CNT and phosphomolybdic acid residue on Carbon felt surface with water, continues 60 DEG C of vacuum
It is dried, i.e. obtains carbon felt/CNT/phosphomolybdic acid composite.
It is furthermore preferred that in described mixed solution carbon nanotube concentration be the concentration of 10mg/mL and phosphomolybdic acid be 20mg/mL.
2, carbon felt/CNT/phosphomolybdic acid composite that described method prepares.
3, described carbon felt/CNT/phosphomolybdic acid composite so expects the application in battery anode material in preparation microorganism.
In the present invention, concentrated hydrochloric acid refers to the hydrochloric acid mass fraction hydrochloric acid more than 37%.
The beneficial effects of the present invention is: the invention provides the preparation method of a kind of carbon felt/CNT/phosphomolybdic acid composite,
Operating procedure is simple, and resulting materials has good hydrophilic and CNT and can be good at dispersion at Carbon felt surface, through electric discharge
And power density test result shows, this material is compared the carbon felt processed under the same conditions and is had more preferable discharge performance and more
High power density, can be as anode of microbial fuel cell materials application.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, the present invention provides drawings described below:
Fig. 1 is carbon felt (CF) and the scanning electron microscope (SEM) photograph drawn game of carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite
Portion's magnified sweep Electronic Speculum figure (A: carbon felt (CF) partial enlarged drawing；B: carbon felt (CF) scanning electron microscope (SEM) photograph；C: carbon felt/carbon
Nanotube/phosphomolybdic acid (CF/CNT/PMo) composite partial enlarged drawing；D: carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo)
Composite scanning electron microscope (SEM) photograph).
Fig. 2 is carbon felt (CF) and the x-ray photoelectron spectroscopy of carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite
Figure.
Fig. 3 is that carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode of carbon felt (CF) and different proportion exists
Germy lactate solution neutralizes containing the circulation volt in the phosphate buffered solution of the flavin mononucleotide (FMN) (FMN) of 10 μMs
(a: CNT and phosphomolybdic acid mass ratio are that the carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo a) of 10:1 is combined in Antu
Material anode is containing the cyclic voltammogram in germy lactate solution；B: CNT and phosphomolybdic acid mass ratio are 1:2's
Carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo b) composite material anode is lying prostrate containing the circulation in germy lactate solution
Antu；C: CNT and phosphomolybdic acid mass ratio are that the carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo c) of 1:5 is combined
Material anode is containing the cyclic voltammogram in germy lactate solution；D: CNT and phosphomolybdic acid mass ratio are 10:1's
Carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo a) composite material anode is containing the flavin mononucleotide (FMN) (FMN) of 10 μMs
The cyclic voltammogram of phosphate buffered solution；E: CNT and phosphomolybdic acid mass ratio are the carbon felt/CNT/phosphorus molybdenum of 1:2
Acid (CF/CNT/PMo b) composite material anode is molten in the phosphate-buffered of the flavin mononucleotide (FMN) (FMN) containing 10 μMs
The cyclic voltammogram of liquid；F: CNT and phosphomolybdic acid mass ratio are the carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo of 1:5
C) composite material anode is at the cyclic voltammogram of the phosphate buffered solution containing the flavin mononucleotide (FMN) (FMN) of 10 μMs).
Fig. 4 is that carbon felt (CF) and carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode are at Microbial fuel
Electric discharge figure in battery.
Fig. 5 is the scanning of antibacterial on carbon felt (CF) and carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode
Electronic Speculum figure (a: carbon felt (CF)；B: carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite).
Fig. 6 is that carbon felt (CF) and carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode are at Microbial fuel
Power density curve in battery.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.Unreceipted actual conditions in embodiment
Experimental technique, generally according to normal condition or according to the condition proposed by manufacturer.
Embodiment 1, the preparation method of carbon felt/CNT/phosphomolybdic acid composite
The preparation method of carbon felt/CNT/phosphomolybdic acid composite, comprises the following steps:
A. the pretreatment of carbon felt: carbon felt is cut into bulk, boils in water to boiling 4-5h, then takes out, then use the most respectively
Acetone and soak with ethanol ultrasonic 0.5h, be finally soaked in water ultrasonic 3 times, each 30min, then 60 DEG C of vacuum drying,
Standby；
B. CNT it is acidified: added by multi-walled carbon nano-tubes in concentrated hydrochloric acid (37%), after being sufficiently mixed, at room temperature (18～25 DEG C)
Lower stirring 5h, separating carbon nano-tube, wash with water, 80 DEG C of vacuum drying, it is thus achieved that the CNT of acidifying；
C. the preparation of carbon felt/CNT/phosphomolybdic acid composite: 1cm × 2cm will be cut into through the carbon felt of step A pretreatment
Size, then soaks ultrasonic 2 in the CNT being acidified containing 10mg/mL and the mixed solution containing 20mg/mL phosphomolybdic acid
H, then soaked overnight, then take out after 60 DEG C of vacuum drying, go unadsorbed firm carbon on Carbon felt surface to receive with secondary washing
Mitron and phosphomolybdic acid residue, continue 60 DEG C of vacuum drying, i.e. obtain carbon felt/CNT/phosphomolybdic acid composite
(CF/CNT/PMo).The scanning electron microscope (SEM) photograph of gained carbon felt/CNT/phosphomolybdic acid composite as shown in C and D in Fig. 1,
From figure it can be clearly seen that, one layer of CNT can be adsorbed at Carbon felt surface, and CNT thereon is evenly distributed,
Adsorbance is many.
Embodiment 2
Embodiment 2 is same as in Example 1, and difference is that carbon felt is 10:1's at CNT and the phosphomolybdic acid mass ratio of acidifying
Mixed solution soaks ultrasonic (i.e. in mixed solution, CNT and the concentration of phosphomolybdic acid of acidifying are respectively 100mg/mL and 10
mg/mL)。
Embodiment 3
Embodiment 2 is same as in Example 1, and difference is that carbon felt is the mixed of 1:5 at CNT and the phosphomolybdic acid mass ratio of acidifying
Close in solution and soak that ultrasonic (i.e. in mixed solution, the CNT of acidifying and the concentration of phosphomolybdic acid are respectively 10mg/mL and 50
mg/mL)。
Comparative example 1: the pretreatment of carbon felt
The pretreatment of carbon felt, comprises the following steps: carbon felt is cut into bulk, boils to boiling 4～5h, then take out in water,
The most respectively by acetone and soak with ethanol, ultrasonic 0.5h, finally with a water ultrasonic immersion 30min, repeatedly for three times, takes out, 60 DEG C
Vacuum drying, standby；Gained pretreated carbon felt scanning electron microscope (SEM) photograph is as shown in A and B in Fig. 1.
For having adsorbed CNT/phosphomolybdic acid, by pretreated carbon felt at the CNT being acidified and phosphorus in checking carbon felt further
Molybdic acid mass ratio is to prepare carbon felt/CNT/phosphomolybdic acid composite under the conditions of 2:1 to carry out X-ray detection, result such as Fig. 2
Shown in.Result shows, the carbon felt of carbon felt/CNT/phosphomolybdic acid composite has adsorbed CNT/phosphomolybdic acid really.
Fig. 2 is the CNT being acidified and the X-ray of carbon felt/CNT/phosphomolybdic acid composite that phosphomolybdic acid ratio is 2:1
Photoelectron spectrogram.It can be seen that adsorbed CNT/phosphomolybdic acid in carbon felt.
Application Example: carbon felt/CNT/phosphomolybdic acid composite is as the application of microorganism anode material
Carbon felt/CNT/phosphomolybdic acid composite that embodiment 1～3 prepares is used for microbiological fuel cell test, and pre-with warp
The carbon felt processed compares as anode.
Fig. 3 is that carbon felt is respectively the carbon felt/carbon nanometer of 10:1,1:2 and 1:5 at the CNT being acidified and phosphomolybdic acid mass ratio
Pipe/phosphomolybdic acid composite material anode neutralizes the flavin mononucleotide (FMN) (FMN) containing 10 μMs at germy lactate solution
Cyclic voltammogram in phosphate buffered solution.From figure 3, it can be seen that the CNT in acidifying with phosphomolybdic acid mass ratio is
During 10:1, using carbon felt/CNT/this material of phosphomolybdic acid composite as anode to antibacterial and flavin mononucleotide (FMN) (FMN)
There is good volt-ampere to respond, and its electric capacity improves a lot, show that CNT/phosphomolybdic acid is modified and can improve anode material
Electric capacity, and when the CNT of acidifying increases to 1:5 with phosphomolybdic acid mass ratio, with carbon felt/CNT/phosphomolybdic acid composite wood
Expect that antibacterial and flavin mononucleotide (FMN) (FMN) are still had good volt-ampere to respond as anode by this material, show the carbon in acidifying
The material that meets that nanotube and phosphomolybdic acid mass ratio control to prepare in the range of 1:5～10:1 all can be as anode material.
Fig. 4 is carbon felt (CF) and embodiment 1 prepares carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode
Electric discharge figure in microbiological fuel cell.From fig. 4, it can be seen that make with carbon felt/CNT/this material of phosphomolybdic acid composite
Discharge performance for anode significantly improves, and shows that the discharge performance that can improve anode material modified by CNT/phosphomolybdic acid.
Fig. 5 is carbon felt (CF) and embodiment 1 prepares carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode
The scanning electron microscope (SEM) photograph of upper antibacterial.From figure 5 it can be seen that thinking that on the material that pretreatment carbon felt is anode, bacterial number is less,
On carbon felt/CNT/phosphomolybdic acid composite material as anode, bacterial number is more, shows to adsorb CNT/phosphomolybdic acid
After, it is possible to substantially increase bacterial adsorption quantity.
Fig. 6 is carbon felt (CF) and embodiment 1 prepares carbon felt/CNT/phosphomolybdic acid (CF/CNT/PMo) composite material anode
Power density curve in microbiological fuel cell.From fig. 6, it can be seen that after absorption CNT/phosphomolybdic acid, it is maximum
Power density (937.4mW cm-2) it is unmodified carbon felt anode (98.8mW cm-2) more than 9 times, show CNT/phosphorus
Molybdic acid modifies the power density improving anode material.
Therefore, its carbon felt/CNT/phosphomolybdic acid composite obtained has more preferable discharge performance and higher power density,
Can be as anode of microbial fuel cell materials application.
Finally illustrating, preferred embodiment above is only in order to illustrate technical scheme and unrestricted, although by above-mentioned
The present invention is described in detail by preferred embodiment, it is to be understood by those skilled in the art that can in form and
In details, it is made various change, without departing from claims of the present invention limited range.
Claims (7)
1. the preparation method of carbon felt/CNT/phosphomolybdic acid composite, it is characterised in that comprise the steps:
A. the pretreatment of carbon felt: by carbon felt decocting in water, more respectively with acetone and the impurity of washing with alcohol removing Carbon felt surface, be dried, standby
With；
B. CNT it is acidified: by effective for multi-wall carbon nano-tube HCl treatment, it is thus achieved that the CNT of acidifying；
C. the preparation of carbon felt/CNT/phosphomolybdic acid composite: will be placed on containing step B gained through the pretreated carbon felt of step A
The mixed liquor of CNT and the phosphomolybdic acid of acidifying soaks ultrasonic after, then soaked overnight, take out and be dried, obtain carbon felt/carbon and receive
Mitron/phosphomolybdic acid composite.
The preparation method of carbon felt/CNT/phosphomolybdic acid composite the most according to claim 1, it is characterised in that: described step
A is that carbon felt is cut into bulk, boils to boiling 4～5h, then take out in water, then uses acetone and soak with ethanol also the most respectively
Ultrasonic 0.5h, is finally soaked in water ultrasonic 3 times, and each 30min, then 60 DEG C of vacuum drying, standby.
The preparation method of carbon felt/CNT/phosphomolybdic acid composite the most according to claim 1, it is characterised in that: described step
B is to add in concentrated hydrochloric acid by multi-walled carbon nano-tubes, after being sufficiently mixed, stirs 5h, separating carbon nano-tube, use at 18～25 DEG C
Water washs, 80 DEG C of vacuum drying, it is thus achieved that the CNT of acidifying.
The preparation method of carbon felt/CNT/phosphomolybdic acid composite the most according to claim 1, it is characterised in that: described step
C is that the carbon felt through the pretreatment of step A is cut into 1cm × 2cm size, then at CNT and the phosphomolybdic acid mass ratio of acidifying
Mixed solution for 1:5～10:1 soaks ultrasonic 2h, then soaked overnight, then takes out after 60 DEG C of vacuum drying, wash carbon elimination with water
Unadsorbed firm CNT and phosphomolybdic acid residue on felt surface, continue 60 DEG C of vacuum drying, i.e. obtain carbon felt/carbon nanometer
Pipe/phosphomolybdic acid composite.
The preparation method of carbon felt/CNT/phosphomolybdic acid composite the most according to claim 4, it is characterised in that: described mixing
In solution carbon nanotube concentration be the concentration of 10mg/mL and phosphomolybdic acid be 20mg/mL.
6. carbon felt/CNT/phosphomolybdic acid composite that method described in any one of Claims 1 to 5 prepares.
7. carbon felt/CNT/phosphomolybdic acid composite described in claim 6 so expects the application in battery anode material in preparation microorganism.
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