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Method for preparing TiO2 film on flexible substrate

A flexible substrate and coating solution technology, applied in the direction of solid-state chemical plating, metal material coating process, coating, etc., can solve the problems that cannot be widely used, harsh, and restrict the development of membrane materials

Active Publication Date: 2014-07-02
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the magnetron sputtering equipment for preparing the film is expensive and the preparation conditions are relatively harsh, resulting in high cost of film materials, which cannot be widely used, which restricts the use of TiO 2 Development of Membrane Materials

Method used

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  • Method for preparing TiO2 film on flexible substrate
  • Method for preparing TiO2 film on flexible substrate
  • Method for preparing TiO2 film on flexible substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Fabrication of TiO on Flexible Substrates 2 A membrane method comprising the steps of:

[0045] 1) Preparation of titanium peroxide aqueous solution

[0046] Take 100ml of TiCl with a concentration of 0.2mol / L 4 Aqueous solution, adjust TiCl with a mass concentration of 5% ammonia water 4 The pH of the aqueous solution is 9, and white ortho-titanic acid precipitates are obtained; wash with deionized water until there is no chloride ion in the system;

[0047] Disperse the orthotitanic acid precipitate in 100ml of hydrogen peroxide solution with a volume fraction of 30%. After the precipitate is completely dissolved, add 0.01g of ferric oxide as a catalyst and heat at 50°C for 2 hours to remove free oxygen in the system. After centrifugation, a yellow-brown transparent titanium peroxide aqueous solution is obtained;

[0048] 2) Preparation of coating solution

[0049] The aniline monomer is used as a reducing agent and a binding agent, and is added to an aqueous sol...

Embodiment 2

[0053] Repeat Example 1, except that the molar ratio of aniline monomer to Ti in the coating solution is 0.5 / 1 [n(AN) / n(Ti)=0.5].

Embodiment 3

[0055] Repeat Example 1, except that the molar ratio of aniline monomer to Ti in the coating solution is 1 / 1 [n(AN) / n(Ti)=1].

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Abstract

The invention discloses a method for preparing a TiO2 film on a flexible substrate. According to the method, based on a titanium peroxide technology, by using phenylamine a reducing agent, through a reducing function of phenylamine to titanium peroxide, an anatase type TiO2 functional film is deposited on the surface of the flexible substrate at a normal temperature; and the generated TiO2 particles uniformly cover the surface of the substrate and are firmly combined with the substrate, and the obtained TiO2 flexible film is better in photocatalytic performance. The method is performed at a normal temperature, and no heat treatment is needed in a preparation process, and the method is simple and easy to operate.

Description

technical field [0001] The invention relates to a method for forming a film of an inorganic semiconductor material, in particular to preparing TiO on a flexible substrate 2 membrane method. Background technique [0002] Flexible functional film materials can be generalized as functional materials formed by fabricating organic / inorganic functional materials on flexible / ductile plastic or thin metal substrates. This type of material has the advantages of high carrier separation efficiency, fast charge mobility, and low cost, and is widely used in flat panel display, thin film solar energy, optical storage, touch panel, electromagnetic shielding and other products. [0003] Titanium dioxide (referred to as TiO 2 ) as a stable photoelectric functional material, because of its low production cost, no secondary pollution and stable performance, it is currently widely used in the development of photoelectric conversion solar cells, photocatalytic degradation of sewage and waste g...

Claims

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Application Information

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IPC IPC(8): C23C20/08
Inventor 只金芳李豫珍吴良专
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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