Today, air purifiers are a must-have product for many people, and the level of purification efficiency has become the focus of attention of buyers and merchants. Recently, the Department of Mechanical Engineering of the Hong Kong Polytechnic University has developed a new semiconductor nanofiber, which has improved the purification efficiency of the air purifier by 10 times.
Liang Huanfang, a professor at the Department of Mechanical Engineering at PolyU, is the leader of this new invention. He said that the new semiconductor nanofibers are made by implanting graphene with high conductivity into a composition mainly composed of titanium dioxide. As a semiconductor, titanium dioxide is a photocatalyst material widely used in air purification and disinfection devices on the market. The photocatalyst is sprayed in the air, which can catalyze the reaction under the light, degrade the harmful substances, and play the role of clean air. It is understood that this new semiconductor nanofiber invention has won the special award gold medal for the 45th International Invention Exhibition in Geneva, and is negotiating cooperation with different enterprises at home and abroad to realize industrialization of technology as soon as possible.
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