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Modified graphite felt electrode as well as modification method and application thereof

A technology of graphite felt modification and graphite felt, which is applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of inability to obtain stable and high-efficiency electrocatalytic anode materials, and achieve excellent electrochemical performance, Effect of improving electrochemical performance and enhancing oxidation efficiency

Inactive Publication Date: 2019-05-07
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention can solve the difficult problem that the prior art cannot obtain stable and high-efficiency electrocatalytic anode materials, and provides a graphite felt electrode with a simple preparation method and good degradation effect and its preparation and modification method and use

Method used

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  • Modified graphite felt electrode as well as modification method and application thereof
  • Modified graphite felt electrode as well as modification method and application thereof
  • Modified graphite felt electrode as well as modification method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Put a 1cm×7cm graphite felt in isopropanol solution and ultrasonically clean it for 30 minutes to remove surface impurities, then rinse it with ultrapure water several times to completely remove the residual isopropanol in the graphite felt, and clean the rinsed graphite felt Put it in a blast drying oven at 60°C and dry it for later use;

[0037] (2) Take 98% concentrated sulfuric acid solution to prepare a sulfuric acid solution with a mass fraction of 10% for later use;

[0038] (3) The graphite felt pretreated in step (1) was used as the working electrode, the platinum sheet was used as the counter electrode, the mercury-mercurous sulfate electrode was used as the reference electrode, and the sulfuric acid solution prepared in step (2) was used as the electrolyte, and the counter electrode and The working electrode forms a path, and then the three electrodes are immersed in the electrolyte at a distance;

[0039] (4) Apply a linear scanning voltage on the worki...

Embodiment 2

[0045] (1) Put a 1cm×7cm graphite felt in isopropanol solution and ultrasonically clean it for 30 minutes to remove surface impurities, then rinse it with ultrapure water several times to completely remove the residual isopropanol in the graphite felt, and clean the rinsed graphite felt Put it in a blast drying oven at 60°C and dry it for later use;

[0046] (2) Take 98% concentrated sulfuric acid solution to prepare a 20% sulfuric acid solution for later use;

[0047] (3) The graphite felt pretreated in step (1) was used as the working electrode, the platinum sheet was used as the counter electrode, the mercury-mercurous sulfate electrode was used as the reference electrode, and the sulfuric acid solution prepared in step (2) was used as the electrolyte, and the counter electrode and The working electrode forms a path, and then the three electrodes are immersed in the electrolyte at a distance;

[0048] (4) Apply a linear scanning voltage on the working electrode, the initia...

Embodiment 3

[0054] (1) Put a 1cm×7cm graphite felt in isopropanol solution and ultrasonically clean it for 30 minutes to remove surface impurities, then rinse it with ultrapure water several times to completely remove the residual isopropanol in the graphite felt, and clean the rinsed graphite felt Put it in a blast drying oven at 60°C and dry it for later use;

[0055] (2) Take 98% concentrated sulfuric acid solution to prepare a sulfuric acid solution with a mass fraction of 2.5% for later use;

[0056] (3) The graphite felt pretreated in step (1) was used as the working electrode, the platinum sheet was used as the counter electrode, the mercury-mercurous sulfate electrode was used as the reference electrode, and the sulfuric acid solution prepared in step (2) was used as the electrolyte, and the counter electrode and The working electrode forms a path, and then the three electrodes are immersed in the electrolyte at a distance;

[0057] (4) Apply a linear scanning voltage on the workin...

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Abstract

The invention discloses a modified graphite felt electrode as well as a modification method and application thereof, and belongs to the technical field of electrochemical water treatment. Through useof a graphite felt as a matrix material and a sulfuric acid solution as an electrolyte, the ratio of oxygen-containing functional groups on the surface of the graphite felt is improved, and the electrochemical performance of the graphite felt electrode is improved by taking the oxygen-containing functional groups as active sites. Compared with a polarization-free graphite felt electrode prepared under the same condition, the polarization graphite felt electrode has higher oxidation efficiency.

Description

technical field [0001] The invention belongs to the technical field of electrochemical water treatment, and relates to a modified graphite felt electrode and its modification method and application, which are mainly used for the electrochemical degradation of pesticide persistent organic pollutants in water. Background technique [0002] To ensure and promote the growth of plants and crops, pesticides are widely used in forestry and agricultural production. However, most pesticides have strong adhesion, permeability and biological toxicity, and are suspected to have the "three effects" effect. Pesticide residues are typical persistent organic pollutants that are often detected in water bodies. The rapid and efficient removal of pesticide residues in water bodies has become a research hotspot in the environmental field. As an environmentally friendly advanced oxidation technology, anodic oxidation is used in Water pollution control, especially the degradation of persistent o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/30
Inventor 刘玉灿吕建波张岩
Owner YANTAI UNIV
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