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Electrode for electrocatalytic degradation of organic pollutants, preparation method and application thereof

A technology of organic pollutants, electrocatalytic degradation, applied in water pollutants, chemical instruments and methods, water/sewage treatment and other directions, can solve obvious problems such as dye harm, and achieve the effects of low cost, easy operation and easy promotion

Active Publication Date: 2021-06-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the harm caused by the large-scale application of dyes is becoming more and more obvious

Method used

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  • Electrode for electrocatalytic degradation of organic pollutants, preparation method and application thereof
  • Electrode for electrocatalytic degradation of organic pollutants, preparation method and application thereof
  • Electrode for electrocatalytic degradation of organic pollutants, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Graphite paper with a thickness of 50 μm was fixed on a glass sheet as an anode, a platinum electrode as a cathode, and a mixed aqueous solution of sodium nitrate (0.1M), potassium permanganate (0.4mM) and sulfuric acid (0.7M) as an electrolyte, and the electrochemical oxidation potential was Regulated by a DC stabilized power supply, the potential is 3V, the oxidation time is 10min, and the target electrode is obtained through electrochemical oxidation.

Embodiment 2

[0035] Graphite paper with a thickness of 50 μm was fixed on a glass sheet as an anode, a platinum electrode as a cathode, and a mixed aqueous solution of sodium nitrate (0.1M), potassium permanganate (0.4mM) and sulfuric acid (0.7M) as an electrolyte, and the electrochemical oxidation potential was Regulated by a DC stabilized power supply, the potential is 2V, the oxidation time is 10min, and the target electrode is obtained through electrochemical oxidation.

Embodiment 3

[0037] Graphite paper with a thickness of 50 μm was fixed on a glass sheet as an anode, a platinum electrode as a cathode, and a mixed aqueous solution of sodium nitrate (0.1M), potassium permanganate (0.4mM) and sulfuric acid (0.7M) as an electrolyte, and the electrochemical oxidation potential was Regulated by a DC stabilized voltage power supply, the potential is 1V, the oxidation time is 10min, and the target electrode is obtained through electrochemical oxidation.

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Abstract

An electrode for electrocatalytic degradation of organic pollutants, a preparation method and application thereof, belonging to the technical field of thin film materials. It fixes graphite paper with a thickness of 50-300 μm on a glass sheet as an anode, a platinum electrode as a cathode, and a mixed aqueous solution of 0.1-0.5M sodium nitrate, 1-10mM potassium permanganate and 0.5-1.0M sulfuric acid as an electrolyte. The chemical oxidation potential is regulated by a DC stabilized power supply, the potential is 1-3V, the oxidation time is 10-30min, and the target electrode is obtained on the glass sheet through electrochemical oxidation. The electrode pair has a pH of 3-11 and a concentration of 20-40 mg L ‑1 Rhodamine B has a significant catalytic degradation effect. The graphite oxide electrode prepared based on the electrochemical oxidation method of the present invention has good stability and high degradation efficiency, the preparation process is simple, easy to operate, the cost of preparing and treating sewage is low, and it is easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of thin film materials, and in particular relates to an electrode for electrocatalytic degradation of organic pollutants, a preparation method and an application thereof. Background technique [0002] With the increasing discharge of industrial wastewater, domestic sewage and agricultural wastewater, the natural environment we rely on has been seriously polluted. Therefore, exploring effective methods of water pollution control has become a research hotspot in recent years. At present, the harm caused by the large-scale application of dyes is becoming more and more obvious. Taking rhodamine B as an example, studies have shown that it will directly endanger human health, and has potential carcinogenicity, mutagenicity and cardiotoxicity. In 2008, my country explicitly prohibited its use as a food additive. Rose Bengal B can penetrate the skin and become toxic in high concentrations. [0003] Among many tre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/30
CPCC02F1/4672C02F2101/30
Inventor 李子亨孙明旭
Owner JILIN UNIV