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Method for growing TiO2 nanowire thin film on surface of stainless steel wire screen

A surface growth, stainless steel technology, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of high equipment requirements and complexity, and achieve good repeatability, mild reaction, and low cost Effect

Active Publication Date: 2014-02-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method combines double-layer glow ion metal penetration and anodic oxidation, which is relatively complicated and requires high equipment.

Method used

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  • Method for growing TiO2 nanowire thin film on surface of stainless steel wire screen
  • Method for growing TiO2 nanowire thin film on surface of stainless steel wire screen
  • Method for growing TiO2 nanowire thin film on surface of stainless steel wire screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) cleaning

[0023] 2.5×2.5cm 2 The stainless steel wire mesh (100 mesh) was cleaned with detergent, then ultrasonically oscillated with absolute ethanol for 15 minutes, then deionized water for 10 minutes, and dried.

[0024] 2) Heat treatment of film drawing

[0025] Add tetrabutyl titanate, diethanolamine, deionized water and cetyltrimethylammonium bromide to ethanol to obtain a sol, the concentration of tetrabutyl titanate in the sol is 0.50 mol / liter, the concentration of diethanolamine 0.50 mol / liter, the concentration of deionized water is 0.50 mol / liter, the concentration of cetyltrimethylammonium bromide is 0.027 mol / liter, the stainless steel screen after cleaning is immersed in sol for 10 seconds with 6 Pulling at a speed of mm / s, and then holding at 450°C for 1 hour, the surface of the screen is covered with anatase TiO 2 TLC.

[0026] 3) Preparation of reaction solution

[0027] Add melamine and nitric acid to hydrogen peroxide with a mass con...

Embodiment 2

[0032] 1) same as embodiment 1 step 1);

[0033] 2) same as embodiment 1 step 2);

[0034] 3) Same as step 3 of embodiment 1);

[0035] 4) The stainless steel wire mesh in step 2) was immersed in the reaction solution in step 3), and 0.25 g of titanium sponge was added as a titanium source, and reacted at 80° C. for 12 hours. Then keep it at 400°C for 1 hour to get TiO grown on the surface of the screen. 2 nanowire film.

Embodiment 3

[0037] 1) same as embodiment 1 step 1);

[0038] 2) same as embodiment 1 step 2);

[0039] 3) Same as step 3 of embodiment 1);

[0040] 4) Immerse the stainless steel wire mesh in step 2) in the reaction solution in step 3), and add 0.25 g of titanium sponge as a titanium source, react at 80 ° C for 24 hours, and then keep it at 550 ° C for 1 hour to obtain the growth on the wire. TiO on mesh surface 2 nanowire films.

[0041] image 3 The low-magnification scanning electron microscope photo shows that the surface of the stainless steel wire is uniformly covered with a nanowire film, and a small amount of powder on the stainless steel wire mesh is attached, which is the powder generated in the solution during the reaction and deposited on the stainless steel wire mesh.

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Abstract

The invention discloses a method for growing a TiO2 nanowire thin film on the surface of a stainless steel wire screen. The method comprises the following steps of adding tetrabutyl titanate, diethanol amine, de-ionized water and cetyl trimethyl ammonium bromide into ethanol to form sol; coating the sol on the surface of the cleaned and dried stainless steel wire screen by utilizing a dipping-pulling method, soaking the stainless steel wire screen in a hydrogen peroxide solution containing melamine and nitric acid, reacting for 6-48 hours at 80 DEG C by taking titanium sponge as a titanium source, and maintaining the temperature for 1 hour at 450-550 DEG C, thus obtaining the TiO2 nanowire thin film growing on the surface of the wire screen. The method is simple and convenient and is low in cost; stainless steel wire carries are uniformly coated by the prepared titanium dioxide nanowire thin film, the combination is firm, and the method has a good industrial application prospect.

Description

technical field [0001] The invention relates to a method for growing TiO on the surface of stainless steel wire mesh 2 The nano wire thin film method is suitable for atmospheric environment treatment and sewage treatment, and belongs to the technical field of environmental protection materials. Background technique [0002] TiO 2 Because of its excellent properties such as high visible light transmittance, high refractive index, and good chemical stability, it has broad application prospects in photocatalytic degradation of organic matter, dye-sensitized solar cells, and anti-fog self-cleaning. Based on its wide range of applications, TiO with special nanostructure and special physical and chemical properties can be loaded on different types and shapes of supports such as metals, glasses, ceramics, and polymers. 2 Thin films are important. [0003] In the fields of sewage treatment and atmospheric treatment, stainless steel wire mesh is used as TiO 2 The carrier has sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06
Inventor 吴进明郭涛涛李擘
Owner ZHEJIANG UNIV
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