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Novel composite electrode as well as preparation method and application thereof

A composite electrode, a new type of technology, applied in chemical instruments and methods, electrolytic coatings, surface reaction electrolytic coatings, etc., can solve the problems of high energy consumption and low light utilization rate of polycyclic aromatic hydrocarbons, achieve stable electrode performance, and benefit Regular transmission and transformation, the effect of mild conditions

Active Publication Date: 2019-08-23
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low light utilization rate and high energy consumption of the existing photocatalytic degradation of polycyclic aromatic hydrocarbons, the present invention provides a new type of composite electrode, and provides its preparation method and application

Method used

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  • Novel composite electrode as well as preparation method and application thereof
  • Novel composite electrode as well as preparation method and application thereof
  • Novel composite electrode as well as preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0031] The composite electrode of this embodiment includes titanium foil, titanium dioxide nanotubes, acidified carbon nanotubes, 1-butyl-3-methylimidazolium bisulfate and phosphomolybdic acid from the inside to the outside.

[0032] The preparation method of this composite electrode is as follows:

[0033] 1. Substrate pretreatment

[0034] Grind the titanium foil with 500-mesh sandpaper to remove impurities on the surface of the titanium foil; place the polished titanium foil in acetone, ethanol, and isopropanol and ultrasonically clean the ultrasonically cleaned titanium foil with deionized water, and dry it naturally at room temperature .

[0035] 2. Preparation of titanium dioxide nanotubes

[0036] (1) Electrolyte preparation: a solution composed of ethylene glycol, deionized water and ammonium fluoride was used as the electrolyte, wherein the concentration of ammonium fluoride was 0.15 mol / L, and the volume fraction of deionized water was 4%.

[0037] (2) Anodizing: ...

Embodiment 2

[0046]The composite electrode of this embodiment comprises titanium foil, titanium dioxide nanotubes, acidified carbon nanotubes, 1-butyl-3-methylimidazole hydrochloride and phosphomolybdic acid in sequence from the inside to the outside.

[0047] The preparation method of this composite electrode is as follows:

[0048] 1. Substrate pretreatment

[0049] Grind the titanium foil with 500-mesh sandpaper to remove impurities on the surface of the titanium foil; place the polished titanium foil in acetone, ethanol, and isopropanol and ultrasonically clean the ultrasonically cleaned titanium foil with deionized water, and dry it naturally at room temperature .

[0050] 2. Preparation of titanium dioxide nanotubes

[0051] (1) Electrolyte preparation: a solution composed of ethylene glycol, deionized water and ammonium fluoride is used as the electrolyte, wherein the concentration of ammonium fluoride is 0.1mol / L, and the volume fraction of deionized water is 5%.

[0052] (2) An...

Embodiment 3

[0061] The composite electrode of this embodiment includes titanium foil, titanium dioxide nanotubes, acidified carbon nanotubes, 1-butyl-3-methylimidazolium bisulfate and phosphomolybdic acid from the inside to the outside.

[0062] The preparation method of this composite electrode is as follows:

[0063] 1. Substrate pretreatment

[0064] Grind the titanium foil with 500-mesh sandpaper to remove impurities on the surface of the titanium foil; place the polished titanium foil in acetone, ethanol, and isopropanol and ultrasonically clean the ultrasonically cleaned titanium foil with deionized water, and dry it naturally at room temperature .

[0065] 2. Preparation of titanium dioxide nanotubes

[0066] (1) Electrolyte preparation: a solution composed of ethylene glycol, deionized water and ammonium fluoride is used as the electrolyte, wherein the concentration of ammonium fluoride is 0.2mol / L, and the volume fraction of deionized water is 3%.

[0067] (2) Anodizing: the t...

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Abstract

The invention relates to the technical field of photoelectrocatalysis, and specifically discloses a novel composite electrode as well as a preparation method and application thereof. The composite electrode comprises an electrode substrate, titanium dioxide nanotubes, acidified carbon nanotubes, an imidazole type ionic liquid and phosphomolybdic acid in sequence from the inside to the outside; andthe preparation method comprises the steps of preparing the titanium dioxide nanotubes on the electrode substrate, then supporting the acidified carbon nanotubes on the titanium dioxide nanotubes, depositing the imidazole type ionic liquid, and depositing phosphomolybdic acid. The composite electrode provided by the invention can efficiently degrade polycyclic aromatic hydrocarbons at a lower current density.

Description

technical field [0001] The invention relates to the technical field of photoelectric catalysis, in particular to a novel composite electrode and its preparation method and application. Background technique [0002] Polycyclic aromatic hydrocarbons are a class of compounds with more than two aromatic rings fused together. They are commonly found in the environment. Due to their poor water solubility and difficulty in biodegradation, these compounds accumulate continuously in the environment and are difficult to degrade. persistent organic matter. With the rapid development of China's industrialization, urbanization and agricultural intensification, the ways of polycyclic aromatic hydrocarbons entering the environment are becoming more and more extensive, and the environmental pollution caused by them has also attracted more and more attention. Polycyclic aromatic hydrocarbons are compounds with "three effects", as well as bioaccumulation, biomagnification and persistent pois...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/30C02F1/72C25D11/26C02F101/32
CPCC02F1/46109C02F1/30C02F1/4672C02F1/725C25D11/26C02F2101/32C02F2001/46133C02F2001/46142
Inventor 段庆飞卢静芳郭建博逯彩彩宋圆圆
Owner TIANJIN CHENGJIAN UNIV
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