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Application of photocatalytic degradation technology in the treatment of organic waste gas (VOCs) of titanium dioxide

wallpapers Tech 2020-07-21
Nano-TiO2 light is a kind of photocatalyst that uses the energy of light to decompose harmful gasses in a particular medium. Using TiO2 semiconductor nanomaterials and ultraviolet light, its working principle is to purify and eliminate volatile organic gases through a photocatalytic oxidation reaction. The so-called photocatalytic oxidation reaction lets the light of a specific wavelength irradiate nano-TiO2 semiconductor materials, which can excite "electron-hole" pairs (a kind of high-energy particles). This "electron-hole" and the surrounding water and oxygen are generated. After the reaction, free radical active substances with strong oxidizing ability are produced, which can oxidize and decompose harmful pollutants such as formaldehyde, benzene, ammonia, and hydrogen sulfide in the gas into non-toxic and odorless substances such as CO2 and H2O. Therefore, there are no problems with adsorption saturation and secondary pollution.

Since the first photocatalytic purification device in the world in 1988, the photocatalytic purification method has only been used to eliminate the deodorization or sterilization of small amounts of harmful gasses semi-enclosed or enclosed spaces. The first application of photocatalytic purification to treat exhaust gas pollution is to solve the Pearl River Delta Odor problem in a feed factory. Photocatalytic degradation of organic pollutants is relatively complete, and finally, CO2 and inorganic substances are generated. Therefore, photocatalytic purification technology is considered to be a new purification technology with broad application prospects.

Trunnano is one of the largest titanium dioxide producers in the world. There are titanium dioxide powders and photocatalyst products in various particle sizes. If necessary, please contact Dr. Leo. Email: brad@ihpa.net.

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Tag: TiO2   titanium dioxide   Trunnano