Study on Photocatalytic of Composite Semiconductor for Different Structure
Publication Date : 11/11/2017
Photocatalytic materials have the advantages of low cost, high efficiency, energy saving and no secondary pollution, and have broad application prospects. The single semiconductor photocatalyst has some catalytic activity, but because of the narrow range of light absorption and higher recombination rate of photogenerated electrons and holes, the active hydroxyl radicals are reduced, which affects the photocatalytic efficiency. Semiconductor recombination can effectively reduce the recombination rate of photogenerated electrons and holes, and prolong the lifetime of the electron hole, which is one of the effective methods to improve the photocatalytic efficiency.
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