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Laser modification treatment process of titanium oxide photocatalytic film

A technology of photocatalytic film and treatment process, applied in the direction of physical/chemical process catalyst, chemical/physical process, catalyst activation/preparation, etc., can solve the problems of difficult and effective wide application, single application field, complex raw materials, etc., and achieve improvement. The effect of photocatalytic performance

Inactive Publication Date: 2013-12-18
广州市东纬包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its raw materials are complicated, its application fields are single (mainly fiber fabrics are the object), and the research on laser modification and the research on the initial thin film is also very superficial and unsystematic, so it is difficult to carry out effective and wide-ranging applications.

Method used

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  • Laser modification treatment process of titanium oxide photocatalytic film
  • Laser modification treatment process of titanium oxide photocatalytic film
  • Laser modification treatment process of titanium oxide photocatalytic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Mix titanium tetraisopropoxide and absolute ethanol with a molar ratio of 1:6 in a container, and use electromagnetic stirring for 20 minutes to obtain liquid A;

[0024] (2) Add diethanolamine dropwise to liquid A, the amount of which is 0.2 times the molar amount of titanium tetraisopropoxide, and then electromagnetically stir the mixed solution for 40 minutes to obtain liquid B;

[0025] (3) Add acetic acid dropwise to liquid B, the amount of which is 0.35 times the molar amount of titanium tetraisopropoxide, and then electromagnetically stir the mixed solution for 4 hours to obtain a sol;

[0026] (4) Using ceramics as the substrate, the substrate was ultrasonically cleaned with acetone for 10 minutes, then dried at 110°C for 10 minutes while blowing N 2 , then drop the sol onto the substrate and spin-coat at a speed of 2000rpm for 1.5min to obtain a wet film;

[0027] (5) Place the wet film-coated ceramic substrate in a muffle furnace to raise the temperature ...

Embodiment 2

[0031] The main difference from Example 1 is that the molar ratio of titanium tetraisopropoxide and absolute ethanol is 1:7.

Embodiment 3

[0033] The main difference from Example 1 is that the molar ratio of titanium tetraisopropoxide and absolute ethanol is 1:8.

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Abstract

The invention discloses a laser modification treatment process of a titanium oxide photocatalytic film. Influences of process parameters of laser modification treatment to film performance are systematically researched so as to obtain optimal laser modification process parameters to obtain a titanium oxide photocatalytic film with excellent catalytic performance. The result indicates that the process treatment parameters of laser modification have great influence on the photocatalytic performance of the film, and the titanium oxide photocatalytic film with the optimal performance is prepared through reasonable optimization.

Description

technical field [0001] The invention relates to the technical field of titanium oxide photocatalysis, in particular to a laser modification treatment process for a titanium oxide photocatalytic thin film. Background technique [0002] Titanium oxide (TiO 2 ) has excellent photocatalytic performance under ultraviolet light irradiation, can effectively deodorize, antibacterial, antifouling, and has good stability, non-toxicity, low cost, etc., and is widely used and researched as a photocatalytic material. However, titanium oxide has a wide forbidden band, and only ultraviolet light with a wavelength of less than 380nm can be excited to generate photogenerated electron-hole pairs, while the response to visible light with longer wavelength is poor. [0003] In order to expand the application field and application effect of titanium oxide, research on the modification of titanium oxide to improve its visible light utilization has been popular in recent years. The main modificat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06B01J35/02B01J37/34B01J35/00
Inventor 叶红
Owner 广州市东纬包装制品有限公司
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