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Active element uniformly-doped thin film electrode and preparation method thereof

An active element, uniform doping technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problems of ecological environment hazards, waste of heavy metal resources, etc., to improve the service life of electrodes , the contact is sufficient, the effect of enhancing the removal effect

Active Publication Date: 2021-04-06
江苏羟源环能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Refractory toxic organic pollutants and heavy metal pollutants widely exist in many types of industrial wastewater. If they are not treated effectively, they will cause potential harm to the ecological environment. At the same time, it also causes waste of heavy metal resources

Method used

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  • Active element uniformly-doped thin film electrode and preparation method thereof
  • Active element uniformly-doped thin film electrode and preparation method thereof
  • Active element uniformly-doped thin film electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The whole grain graphene oxide micropowder with an average particle size of 400nm is pretreated in a mixture of concentrated sulfuric acid and concentrated nitric acid (volume ratio of 3:1), and at the same time, air is introduced to disperse the graphene oxide micropowder by micro-nano bubble aeration. Endow more negatively charged oxygen-containing functional groups, hydroxyl functional groups, and carboxyl functional groups on the surface of the graphene oxide particles that constitute the graphene oxide micropowder;

[0035] Put the above-mentioned treated particles into water as negatively charged graphene oxide particles, and ultrasonically disperse and suspend them as a suspension;

[0036] Add 0.5mol / L platinum tetrachloride aqueous solution and perrhenic acid aqueous solution to the above suspension, and then convert the platinum ions around the surface of graphene oxide particles into platinum hydroxide by adding potassium hydroxide solution, and perrhenic acid...

Embodiment 2

[0043] The whole diamond powder with an average particle size of 10nm is pretreated in a mixture of concentrated sulfuric acid and concentrated nitric acid (volume ratio of 6:1), and at the same time, air is introduced to disperse the diamond powder with micro-nano bubble aeration to form the diamond powder. The surface of the diamond particles endows negatively charged oxygen-containing functional groups, hydroxyl functional groups, and carboxyl functional groups;

[0044] Put the above-mentioned treated particles into water as negatively charged diamond particles, and ultrasonically disperse and suspend them as a suspension;

[0045] Add 0.4mol / L gold trichloride aqueous solution and perrhenic acid aqueous solution to the above suspension, and then convert the gold ions around the surface of the diamond particles into gold hydroxide by adding ammonia solution, and the perrhenic acid is also converted into ammonium perrhenic acid , so that the gold precursor and ammonium perr...

Embodiment 3

[0053] The whole grain graphene powder with an average particle size of 5 μm is pretreated in a mixture of concentrated sulfuric acid and concentrated nitric acid (volume ratio is 2:1), and at the same time, the air is introduced to disperse the graphene powder with micro-nano bubble aeration. The graphene particle surface of the graphene micropowder endows negatively charged oxygen-containing functional groups, hydroxyl functional groups, and carboxyl functional groups;

[0054] Put the above-mentioned treated particles into alcohol as negatively charged graphene particles, and ultrasonically disperse and suspend them as a suspension;

[0055] Add 0.1mol / L tetrachloroauric acid aqueous solution and perrhenic acid aqueous solution to the above suspension, and then convert the gold ions around the surface of graphene particles into gold hydroxide by adding urea solution, and perrhenic acid is also converted into perrhenic acid Ammonia, which precipitates and supports gold precu...

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Abstract

The invention provides an active element uniformly-doped thin film electrode and a manufacturing method thereof. The active element uniformly-doped thin film electrode comprises a substrate and a surface composite powder thin film of the substrate, the surface composite powder film is uniformly doped with active elements and carbon-based material micro powder, and the active elements comprise noble metal particles, an organic diboron compound and rhenium particles; the mass fraction of noble metal particles in the surface composite powder film is 0.1%-30%, the mass fraction of rhenium particles is 0.1%-10%, the mass fraction of an organic diboron compound is 0.1%-15%, and the balance is carbon-based material micro powder; and the substrate is an inert metal plate. The active elements such as noble metal elements and boron elements are uniformly dispersed in a film of the carbon-based electrode, the electro-catalytic performance of a traditional doped carbon-based film electrode is improved by controlling the components of the composite powder, and the composite electrode with high electro-catalytic performance is prepared; meanwhile, due to the addition of noble metal elements, the degradation effect on toxic and refractory organic matters is guaranteed, and the removal effect on heavy metal sewage containing mercury and the like is enhanced.

Description

technical field [0001] The invention belongs to the field of novel functional thin-film electrode materials, and in particular relates to a thin-film electrode uniformly doped with active elements and a preparation method thereof Background technique [0002] Refractory toxic organic pollutants and heavy metal pollutants widely exist in many types of industrial wastewater. If they are not treated effectively, they will cause potential harm to the ecological environment and cause waste of heavy metal resources. The methods commonly used to remove related organic matter mainly include membrane separation, microorganisms, adsorption, and electrocatalysis. Due to the advantages of high efficiency, low cost, simple operation, no secondary pollution, and recyclable heavy metal resources, electrocatalysis technology is favored. It is recognized as one of the most potential pollution control technologies. [0003] Carbon-based materials such as graphene, fullerene, and carbon nanot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/20C02F101/30
CPCC02F1/46109C02F2101/20C02F2101/30C02F2001/46138
Inventor 李森尚凯李璐黄磊钟翔唐丽
Owner 江苏羟源环能科技有限公司
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