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Preparation method of photoelectrocatalysis anode material taking TNTs as substrate

A kind of anode material, photoelectric catalysis technology, applied in the direction of chemical instruments and methods, special compound water treatment, light water/sewage treatment, etc., can solve the problem of low utilization rate of light energy and electric energy, achieve the improvement of photocatalytic activity, instruments and equipment Low-demand, high-reproducibility effects

Inactive Publication Date: 2020-04-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] TiO 2 In the photocatalytic technology based on the substrate, the utilization rate of light energy and electric energy is low

Method used

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  • Preparation method of photoelectrocatalysis anode material taking TNTs as substrate
  • Preparation method of photoelectrocatalysis anode material taking TNTs as substrate
  • Preparation method of photoelectrocatalysis anode material taking TNTs as substrate

Examples

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Embodiment 1

[0033] A kind of preparation method taking TNTs as substrate photoelectric catalysis anode material, specifically comprises the following steps:

[0034] (1) Choose a titanium plate of 30×30×0.3mm, soak the titanium plate in NaOH solution for 1 hour, then corrode it in oxalic acid and nitric acid solution for 0.5h and 6h respectively and heat it to 90°C, and finally use ultra-pure Rinse with water and dry, then put it into a mixed solution of acetone and ethanol and sonicate for 30 minutes, rinse with ultrapure water, dry, and set aside.

[0035](2) Put the pretreated titanium plate into 100ml of ethylene glycol system electrolyte with ammonium fluoride and water as the electrolyte (the concentration of ammonium fluoride is 0.1mol / L, and the volume of water is 1% of the volume of ethylene glycol. %), with Pt as the cathode, the treated titanium plate as the anode, and a constant voltage of 50V to carry out anodic oxidation on the pretreated titanium plate for 3 hours; after wa...

Embodiment 2

[0052] A kind of preparation method taking TNTs as substrate photoelectric catalysis anode material, specifically comprises the following steps:

[0053] (1) Choose a titanium plate of 30×30×0.3mm, soak the titanium plate in NaOH solution for 1 hour, then corrode it in oxalic acid and nitric acid solution for 0.5h and 6h respectively and heat it to 90°C, and finally use ultra-pure Rinse with water and dry, then put it into a mixed solution of acetone and ethanol and sonicate for 30 minutes, rinse with ultrapure water, dry, and set aside.

[0054] (2) Put the pretreated titanium plate into 100ml of ethylene glycol system electrolyte with ammonium fluoride and water as the electrolyte (the concentration of ammonium fluoride is 0.2mol / L, and the volume of water is 2 times the volume of ethylene glycol. %), with Pt as the cathode, the treated titanium plate as the anode, and a constant voltage of 40V was used to anodize the pretreated titanium plate for 3 hours; after washing with...

Embodiment 3

[0059] A kind of preparation method taking TNTs as substrate photoelectric catalysis anode material, specifically comprises the following steps:

[0060] (1) Choose a titanium plate of 30×30×0.3mm, soak the titanium plate in NaOH solution for 1 hour, then corrode it in oxalic acid and nitric acid solution for 0.5h and 6h respectively and heat it to 90°C, and finally use ultra-pure Rinse with water and dry, then put it into a mixed solution of acetone and ethanol and sonicate for 30 minutes, rinse with ultrapure water, dry, and set aside.

[0061] (2) Put the pretreated titanium plate into 100ml ethylene glycol system electrolyte with ammonium fluoride and water as the electrolyte (the concentration of ammonium fluoride is 0.15mol / L, and the volume of water is 1.5 mol / L of the volume of ethylene glycol. %), with Pt as the cathode, the treated titanium plate as the anode, and a constant voltage of 60V to carry out anodic oxidation on the pretreated titanium plate for 3 hours; af...

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Abstract

The invention discloses a preparation method of a photoelectrocatalysis anode material taking TNTs as a substrate, and belongs to the technical field of anode photoelectrocatalysis and pollutant treatment. The anode material has good photoelectrocatalysis performance and comprises a substrate TNTs, wherein SnO2, Sb and Ag nano ions are loaded on the surface of the substrate, the SnO2 and the Sb nanoparticles are attached to the tube bottom and the internal tube wall of the TNTs, and the nano Ag ions are loaded at the tube opening of the TNTs, so that a microscopic three-dimensional stable structure is formed. According to the invention, the problem that the electric energy utilization rate is low in the photoelectrocatalysis process is solved, the problem that photo-induced electrons and holes are prone to compounding is also solved, the efficient and stable photoelectrocatalytic pollutant degradation performance is achieved, and the beneficial effects of being stable in structure andhigh in photoelectrocatalytic performance are achieved; and the photoelectric test results show that the TNTs-SnO2 / Sb / Ag photoelectrocatalytic anode prepared by the method has good photochemical properties and good electrochemical properties compared with the pure TNTs anode, and has strong pollutant removal capacity.

Description

technical field [0001] The invention relates to a method for preparing a photoelectric catalysis anode material based on TNTs, and belongs to the technical field of anode photocatalysis and pollutant treatment. Background technique [0002] In recent years, problems such as energy shortage and environmental pollution have aroused people's widespread concern. Finding and developing low-cost clean energy and effective environmental protection technology has become an important issue for the sustainable development of human beings. Semiconductor photocatalytic technology can convert low-density solar energy into high-density chemical energy, including degrading and mineralizing various organic pollutants in water and air, decomposing water to produce hydrogen and reducing carbon dioxide. This technology has the advantages of reaction at room temperature, direct use of solar energy, and no secondary pollution. It has immeasurable significance for fundamentally solving the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/30C02F1/50
CPCC02F1/46109C02F1/30C02F1/50C02F2001/46142C02F2305/023C02F2201/46105C02F2305/10
Inventor 潘学军孙世杰黄斌何欢邓弘宇赵天国
Owner KUNMING UNIV OF SCI & TECH
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