A kind of spraying method and spraying equipment of titanium dioxide photocatalyst

Abstract

The invention discloses a spraying method and spraying equipment of a titanium dioxide photocatalyst, wherein the spraying method includes the following steps: S1, providing raw materials: the raw materials include the following components by weight ratio: copper salt: 1% to 5%, sodium Salt: 1%~5%, aluminum salt: 1%~5%, nitric acid: 1%~4%, nano silver: 0.1%~0.8%, nano palladium: 0.1%~0.5%, nano gold: 0.1%~0.5% %, deionized water: 50%, nano-titanium dioxide: 29.2% to 45.7%; S2, preparing titanium dioxide photocatalyst; S3, fixing the profile; S4, spraying; S5, adjusting the angle of the spraying tube or the position of the profile; S6, spraying again ; S7, repeat steps S5 and S6. Compared with the prior art, the titanium dioxide photocatalyst used in the spraying method of the titanium dioxide photocatalyst provided by the present invention is added with noble metals, the catalytic effect of the titanium dioxide photocatalyst is significantly improved, and the catalyst is not easy to deactivate after degrading multiple pollutants. Longer service life and higher durability.

Description

【Technical field】 [0001] The invention relates to the technical field of titanium dioxide photocatalysts, in particular to a method and equipment for spraying titanium dioxide photocatalysts. 【Background technique】 [0002] The principle of photocatalysis is based on the redox ability of photocatalysts under the condition of light, so that the purpose of purifying pollutants, material synthesis and transformation can be achieved. Typically, photocatalytic oxidation uses semiconductors as catalysts and light as energy to degrade organic matter into carbon dioxide and water. Therefore, photocatalytic technology, as an efficient and safe environment-friendly environmental purification technology, has been recognized by the international academic community for the improvement of indoor air quality. [0003] There are actually many types of photocatalysts, including titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, cadmium sulfide and other oxide sulfide semiconductors...

AI Technical Summary

Problems solved by technology

[0003] There are actually many types of photocatalysts, including titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, cadmium sulfide and other oxide sulfide semiconductors. In addition, some silver salts and porphyrins also have catalytic effects, but they are basically all There is a disadvantage: there is loss, that is, it will be consumed before and after the reaction, and most of them have certain toxicity to the human body

[0004] Titanium dioxide photocatalyst has the function of decomposing pollutants. In order to better ensure the quality of the indoor environment, it can be sprayed on the profile, and then the profile is placed indoors to facilitate the purification of the indoor gas environment. However, the existing titanium dioxide photocatalyst The catalytic efficiency is low, the catalyst is easily deactivated, and the existing equipment generally sprays it on flat profiles, and the tubular profiles cannot be sprayed well, which is not conducive to use

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