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Electrochemical method for preparing activated carbon fibers with photocatalysis function

A technology of activated carbon fiber and photocatalysis, applied in physical/chemical process catalysts, chemical instruments and methods, other chemical processes, etc., can solve the problems of harsh operating conditions, high consumption, low efficiency, etc., to reduce manpower and ease supply. insufficient effect

Inactive Publication Date: 2014-05-07
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional regeneration methods mainly include thermal regeneration, chemical regeneration, solvent regeneration, biological regeneration, etc., but due to their defects such as low efficiency, high cost, harsh operating conditions, and complicated processes, traditional regeneration methods can no longer meet the needs of current industrial development.

Method used

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  • Electrochemical method for preparing activated carbon fibers with photocatalysis function
  • Electrochemical method for preparing activated carbon fibers with photocatalysis function
  • Electrochemical method for preparing activated carbon fibers with photocatalysis function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) The activated carbon fibers with electrical conductivity and resistivity less than 80kΩ / m are boiled and cleaned with 2% hydrochloric acid, then washed to neutral by distillation, and dried in an oven for 24 hours;

[0021] 2) Soak the activated carbon fiber in step 1) in a N,N dimethylformamide solution of 0.05mol / L dicyandiamide for 24 hours;

[0022] 3) The process of immobilizing graphite-phase carbon nitride is carried out in an electrolytic cell. Electrochemical deposition conditions: use 0.05mol / L dicyandiamine N,N dimethylformamide solution as electrolyte, graphite as anode, The activated carbon fiber in step 2) is used as the cathode, the power supply is a DC power supply, the electrolysis process voltage is 2000V, the electrolysis process temperature is 25°C, and the electrolysis time is 1h.

[0023] 4) Take out the active carbon fiber of the cathode from the electrolytic cell, wash it fully with distilled water, and dry it, so that the active carbon fiber ...

Embodiment 2

[0025] 1) The activated carbon fibers with electrical conductivity and resistivity less than 80kΩ / m are boiled and cleaned with 2% hydrochloric acid, then washed to neutral by distillation, and dried in an oven for 24 hours;

[0026] 2) Soak the activated carbon fiber in step 1) in 0.15mol / L N,N dimethylformamide solution of dicyandiamide for 24h;

[0027] 3) The process of immobilizing graphite phase carbon nitride is carried out in an electrolytic cell, and the electrochemical deposition conditions are as follows: 0.15mol / L N,N dimethylformamide solution of dicyandiamine is used as the electrolyte, and graphite is used as the anode. The activated carbon fiber in step 2) is used as the cathode, the power supply is a DC power supply, the electrolysis process voltage is 500V, the electrolysis process temperature is 30°C, and the electrolysis time is 5h.

[0028] 4) Take out the active carbon fiber of the cathode from the electrolytic cell, wash it fully with distilled water, an...

Embodiment 3

[0030] 1) The activated carbon fibers with electrical conductivity and resistivity less than 80kΩ / m are boiled and cleaned with 2% hydrochloric acid, then washed to neutral by distillation, and dried in an oven for 24 hours;

[0031] 2) Soak the activated carbon fiber in step 1) in 0.10mol / L N,N dimethylformamide solution of dicyandiamide for 24h;

[0032] 3) The process of immobilizing graphite-phase carbon nitride is carried out in an electrolytic cell. Electrochemical deposition conditions: use 0.10mol / L dicyandiamide N,N dimethylformamide solution as electrolyte, graphite as anode, The activated carbon fiber in step 2) is used as the cathode, the power supply is a DC power supply, the electrolysis process voltage is 1000V, the electrolysis process temperature is 28°C, and the electrolysis time is 3h.

[0033] 4) Take out the active carbon fiber of the cathode from the electrolytic cell, wash it fully with distilled water, and dry it, so that the active carbon fiber with ph...

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Abstract

The invention discloses a preparation method for activated carbon fibers with a photocatalysis function. The activated carbon fibers for immobilizing graphite phase carbon nitride are prepared by an electrochemical deposition method by taking activated carbon fibers, dicyanodiamine, N,N-dimethylformamide and the like as main raw materials. The activated carbon fibers have an adsorption function and the photocatalysis function. Under a condition of darkness or insufficient light, pollutants can be purified under the adsorption function of the activated carbon fibers; under a condition of sufficient light, the pollutants can be purified under the adsorption function and the photocatalysis function; in-situ regeneration of the adsorption function of the activated carbon fibers can be realized; labor, resource and financial consumption of a regeneration process is greatly reduced. Successful research on the activated carbon fibers has an important significance for relieving of insufficience of activated carbon fiber supply in China.

Description

Technical field [0001] The present invention is a field of activated carbon fiber preparation, which involves a preparation method with optical carbon fiber with optical function. Background technique [0002] The advantages of activated carbon fiber due to its developed pore structure, strong adsorption, rich surface official energy groups, chemical inertia and other advantages, and are widely used in the fields of gas adsorption and purification, pollution water governance, drinking water purification, and food industry, chemical industry and other fields.However, due to the small variety of activated carbon fibers, low technical content, and lack of functional high -quality dedicated activated carbon fiber, it restricts my country's activated carbon fiber industry to a higher level of applications.The activated carbon fiber modified treatment, and the development of functional activated carbon fiber that can efficient and deep purification of pollutants is an effective way to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01J27/24
Inventor 陈孝云陆东芳陈星马长城常鼎伟高骁敏
Owner FUJIAN AGRI & FORESTRY UNIV
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