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A New characterization method of photocatalytic activity in semiconductor photocatalysts

Sumita, Taishi; Yamaki, Tetsuya; Yamamoto, Shunya; Miyashita, Atsumi

We propose a new simple method for characterizing photocatalytic activity by measuring photo-generated transient charge separation at the surface of semiconductor photocatalysts. In this method, the charge separation generated by a pulse dye laser is obtained as a function of the incident laser energy. Using this method, the photocatalytic activity and the type of surface reaction (reduction or oxidation) in titanium dioxide films were rapidly determined.

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Category:Physics, Applied

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