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Preparation method of carbon fiber electrode efficiently producing hydrogen peroxide to treat organic wastewater

A carbon fiber electrode, hydrogen peroxide technology, applied in oxidation water/sewage treatment, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of restricted application, low output, etc., achieve high-efficiency treatment, simple operation, increase reaction The effect of the active site

Inactive Publication Date: 2017-09-26
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the electrocatalytic production of H by carbon fiber electrode materials 2 o 2 The yield is not high, which restricts its application in the electric Fenton system, so it is easy to develop a carbon fiber electrode that can significantly improve the catalytic activity and H 2 o 2 The method of yield is of great significance for its application and promotion in the treatment of organic wastewater technology

Method used

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  • Preparation method of carbon fiber electrode efficiently producing hydrogen peroxide to treat organic wastewater
  • Preparation method of carbon fiber electrode efficiently producing hydrogen peroxide to treat organic wastewater
  • Preparation method of carbon fiber electrode efficiently producing hydrogen peroxide to treat organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] step one;

[0028] Mix 0.2g of carbon nanotube particles and 0.2g of polytetrafluoroethylene into 15ml of deionized water, then add 1ml of isopropanol, and ultrasonically mix the solution for 10 minutes to obtain a mixed solution A;

[0029] Step two;

[0030] Apply the mixed solution A evenly on both sides of the cleaned and degreased carbon fiber material to obtain a pretreated carbon fiber material

[0031] Step three;

[0032] The pretreated carbon fiber material obtained in step 2 was placed in an oven at a temperature of 40° C. for 4 hours, and then placed in a muffle furnace for annealing treatment at 300° C. for 1 hour to obtain the carbon fiber material.

Embodiment 2

[0034] step one;

[0035] Mix 0.2g of carbon nanotube particles and 0.6g of polytetrafluoroethylene into 20ml of deionized water, then add 2ml of isopropanol, and mix the solution evenly by ultrasonication for 15min to obtain a mixed solution A;

[0036] Step two;

[0037] Apply the mixed solution A evenly on both sides of the cleaned and degreased carbon fiber material to obtain a pretreated carbon fiber material;

[0038] Step three;

[0039] The pretreated carbon fiber material obtained in step 2 was placed in an oven at 60° C. for 6 hours, and then placed in a muffle furnace for annealing at 360° C. for 1 hour to obtain the carbon fiber material.

Embodiment 3

[0041] step one;

[0042] Mix 0.2g of carbon nanotube particles and 1.4g of polytetrafluoroethylene into 30ml of deionized water, then add 3ml of isopropanol, and mix the solution uniformly by ultrasonication for 20min to obtain a mixed solution A;

[0043] Step two;

[0044] Apply the mixed solution A evenly on both sides of the cleaned and degreased carbon fiber material to obtain a pretreated carbon fiber material;

[0045] Step three;

[0046] The pretreated carbon fiber material obtained in step 2 was placed in an oven at 80° C. for 8 hours, and then placed in a muffle furnace for annealing treatment at 360° C. for 1 hour to obtain the carbon fiber material.

[0047] The SEM figure of the carbon fiber obtained in embodiment 1 is as figure 1 As shown, as a control, the SEM image of the pretreated carbon fiber is shown in figure 2 As shown, it can be seen that the surface of the material obtained in the example is loaded with a large number of nano-carbon particles and...

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Abstract

The invention provides a preparation method of a carbon fiber electrode efficiently producing hydrogen peroxide to treat organic wastewater. The preparation method comprises the following steps of weighing carbon nanometer tube particles and teflon of a certain mass, adding the carbon nanometer tube particles and teflon into deionized water according to a mass ratio, adding isopropyl alcohol, performing ultrasonic treatment on the solution for 10-20 minutes so as to mix the solution uniformly to obtain a mixed solution A, immersing the cleaned commercialized carbon fiber material into the obtained mixed solution A for 20-40 minutes, performing ultrasonic treatment for 1-3 hours at a constant temperature of 40-60 DEG C so as to acquire a pre-treated carbon fiber material, maintaining the pre-treated carbon fiber material in a stove of 40-80 DEG C for 4-8 hours, then annealing in a muffle furnace at 300-400 DEG C for 1 hours, so as to obtain the carbon fiber material. The electrode carbon fiber electrode prepared by the method has the characteristic of long service life.

Description

technical field [0001] The invention relates to the technical field of electrocatalytic electrode materials, in particular to a carbon fiber electrode preparation method for efficiently producing hydrogen peroxide to treat organic wastewater. Background technique [0002] Hydrogen peroxide (H 2 o 2 The electrochemical synthesis of ) is an electrochemical electrode reduction reaction. With the development of electrochemical technology in water treatment, H 2 o 2 The electrochemical generation has also received extensive attention. In particular, it is widely used in the electro-Fenton technology, which is based on molecular oxygen (O 2 ) is reduced to hydrogen peroxide (H 2 o 2 ) and with ferrous ions (Fe 2+ ) reaction to generate strong oxidizing hydroxyl radicals (·OH), thereby realizing the oxidative degradation process of pollutants. [0003] In the electro-Fenton system, how to increase the H 2 o 2 The yield is an important factor restricting its treatment effe...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72
CPCC02F1/46109C02F1/4672C02F2001/46133
Inventor 余方可马宏瑞陈阳王祎
Owner SHAANXI UNIV OF SCI & TECH
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