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Photocatalytic coating agent, preparation method and coating method thereof

A nano-photocatalyst and coating agent technology, applied in the field of photocatalysis, can solve the problems of easy shedding and low catalytic efficiency, and achieve the effects of not easy to fall off, easy to large-scale production and use, and excellent photocatalytic performance.

Inactive Publication Date: 2016-10-19
李建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that the current photocatalytic coating agents have more or less defects, such as low catalytic efficiency, easy to fall off after loading, etc., it is still a technical problem to find a photocatalytic coating agent with excellent performance.

Method used

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preparation example Construction

[0034] An embodiment of the present application also provides a preparation method of the above-mentioned photocatalytic coating agent, which includes the following steps:

[0035] S1. Disperse 0.01 to 3 parts of the water-soluble titanium compound in 100 parts of deionized water, and stir to form an aqueous titanium compound solution;

[0036] S2. Add 0.01 to 2 parts of the binder to the titanium compound aqueous solution prepared in step S1, and stir to form a titanium compound aqueous solution containing the binder;

[0037] S3. Add 0.1 to 20 parts of nanometer photocatalyst to the titanium compound aqueous solution containing binder prepared in step S2, stir and mix evenly, and the obtained suspension is the photocatalytic coating agent.

[0038] In the step S3, 0.001 to 0.2 parts of metal ions may also be added during the uniform mixing process.

[0039]One embodiment of the present application also provides the coating method of the above-mentioned photocatalytic coatin...

Embodiment 1

[0044] Take 3 grams of water-soluble titanium compound, disperse it in 100 grams of deionized water under the condition of vigorous stirring, and continue to stir vigorously until an aqueous solution of titanium compound is formed; then, add 2 grams of viscose to the above aqueous solution of titanium compound under the condition of vigorous stirring Binder, continue to stir vigorously until the titanium compound aqueous solution containing the binder is formed; then, under the condition of vigorous stirring, slowly add 20 grams of nano photocatalyst to the titanium compound aqueous solution containing the binder, and continue to stir vigorously for 2 hours , the obtained stable suspension is the photocatalytic coating agent.

Embodiment 2

[0046] Take 1 gram of water-soluble titanium compound, disperse it in 100 grams of deionized water with vigorous stirring, and continue to stir vigorously until an aqueous solution of titanium compound is formed; then, add 1 gram of viscose to the above aqueous solution of titanium compound with vigorous stirring. Binder, continue to stir vigorously until the titanium compound aqueous solution containing the binder is formed; then, under the condition of vigorous stirring, slowly add 10 grams of nano photocatalyst to the titanium compound aqueous solution containing the binder, and continue to stir vigorously for 2 hours , the obtained stable suspension is the photocatalytic coating agent.

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Abstract

The present application discloses a photocatalytic coating agent and its preparation method and coating method. The photocatalytic coating agent comprises: composed of the following proportions in parts by mass, 0.1 to 20 parts of nano photocatalyst, binder 0.01 to 2 parts, 0.01 to 3 parts of water-soluble titanium compound and 100 parts of deionized water. The photocatalytic coating agent also comprises 0.001 to 0.2 parts by mass of metal ions; the metal ions are selected from gold ions, silver ions, platinum ions, palladium ions, rhodium ions, iridium ions, copper ions, iron ions , cobalt ions, nickel ions, manganese ions, vanadium ions, chromium ions, tantalum ions, lanthanum ions, cerium ions or a mixture of any proportion. The present application provides a photocatalytic coating agent, which is non-toxic and environmentally friendly, simple and easy to obtain, has high transparency, stable dispersion and suspension, high photocatalytic performance, and is easy to be tightly fixed on various substrate materials.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to a photocatalytic coating agent, a preparation method and a coating method thereof. Background technique [0002] Photocatalytic material is a substance that does not change itself under the irradiation of light, but can promote chemical reactions. Photocatalytic materials can decompose almost all organic substances and some inorganic substances that are harmful to the human body and the environment, and play a role in environmental purification. It can effectively use natural sunlight without causing waste of resources and formation of additional pollution. In order to maximize the photocatalytic efficiency of the photocatalytic material, it needs to be prepared in the nanometer scale. The nanoscale photocatalytic material has a large specific surface area, can absorb more organic matter, and exhibits a higher photocatalytic efficiency. However, there are some defects in ...

Claims

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Application Information

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IPC IPC(8): B01J37/02B01J21/06
Inventor 李建明
Owner 李建明
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