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Preparation of graphene polyaniline modified carbon cloth electrode material, and method for accelerating acclimation of bio-anode

A carbon cloth electrode and bioanode technology, which is applied in chemical instruments and methods, electrochemical biocombination treatment, battery electrodes, etc., can solve the problems of poor electron transfer efficiency of bioelectrochemical anodes, accelerate the domestication of bioanode The effect of delivery efficiency, good biocompatibility, easy processing

Inactive Publication Date: 2017-07-11
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem of poor electron transfer efficiency of existing bioelectrochemical anodes, and provides a preparation method of graphene polyaniline modified carbon cloth electrode materials and a method for accelerating the domestication of bioanodes

Method used

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  • Preparation of graphene polyaniline modified carbon cloth electrode material, and method for accelerating acclimation of bio-anode

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specific Embodiment approach 1

[0021] Specific embodiment one: the preparation method of the graphene polyaniline modified carbon cloth electrode material of the present embodiment, carry out according to the following steps:

[0022] 1. Add graphene oxide into water, and then place it in an ice-water bath in an ultrasonic cleaner for ultrasonic treatment for 2 to 3 hours to obtain a graphene oxide slurry;

[0023] 2. Soak and clean the hydrophilic carbon cloth with acetone, then wash it with distilled water, and dry it to obtain a clean carbon cloth; then disperse the clean carbon cloth in an aqueous solution of sodium lauryl sulfate, and after ultrasonic treatment for 2 to 2.5 hours, Add the graphene oxide slurry obtained in step 1, and continue the ultrasonic treatment of the mixed solution for 0.5 to 1 hour;

[0024] 3. Take out the carbon cloth from the mixed liquid, place it in a suction filter dish, then drop the mixed liquid onto the carbon cloth until the upper and lower surfaces of the carbon clot...

specific Embodiment approach 2

[0028] Embodiment 2: This embodiment differs from Embodiment 1 in that the concentration of graphene oxide in the slurry in Step 1 is 1-2 g / L; other aspects are the same as Embodiment 1.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the concentration of sodium lauryl sulfate aqueous solution in step two is 10~15g / L; Others are identical with specific embodiment one or two.

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Abstract

The invention provides preparation of a graphene polyaniline modified carbon cloth electrode material, and a method for accelerating the acclimation of a bio-anode, and relates to electrode preparation and bio-anode acclimation. A purpose of the present invention is to solve the technical problem of poor electron transfer efficiency of existing bioelectrochemical anode. The graphene polyaniline modified carbon cloth electrode material preparation method comprises: loading graphene oxide onto a carbon cloth, immersing into a sodium borohydride solution, reducing, immersing into an aniline monomer solution, adding a curing agent solution in a dropwise manner, and polymerizing to obtain the graphene polyaniline modified carbon cloth electrode material. According to the present invention, with the application of the graphene polyaniline modified carbon cloth electrode material as the anode in the bioelectrochemical system reactor, the operation is performed after the starting until the output potential is stable so as to complete the acclimation; and the graphene polyaniline modified carbon cloth electrode material can be used in wastewater treatment.

Description

technical field [0001] The invention relates to a method for electrode preparation and biological anode domestication. [0002] technical background [0003] Bioelectrochemical systems (BESs), which use microorganisms to catalyze different electrochemical reactions, are promising new technologies for converting energy from waste or wastewater into electrical energy and other products. At present, BESs have a wide range of applications, such as small molecule synthesis (hydrogen and methane production, etc.) and remediation of refractory organic / inorganic pollutants. With the continuous deepening and expansion of research work, the electrodes of traditional BESs have high resistance, low electron transfer efficiency, small specific surface area, and poor hydrophilicity, making it difficult for microorganisms to attach to the electrodes, making it difficult to form biological Membrane directly affects the electron transfer efficiency of the electrode, restricting its wide appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88H01M8/16C02F3/00
CPCC02F3/005H01M4/8657H01M4/8663H01M4/8673H01M4/88H01M8/16Y02E60/50
Inventor 王爱杰林小秋李智灵姚正朱颖颖
Owner HARBIN INST OF TECH
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