Abstract
Photocatalytic water splitting into hydrogen was regarded as one of the key solutions to the energy crisis and environmental pollution. In this work, TiO2/BiYO3 photocatalysts were synthesized by an improved Sol-Gel method and their photocatalytic activity for hydrogen evolution from water splitting was investigated. The photocatalytic hydrogen evolution rate of the optimized TiO2/BiYO3 composite exhibited 10 times higher than that of TiO2 and 57 times higher than that of BiYO3, respectively. Such enhanced photocatalytic performance was due to the Type I heterostructure between the TiO2 and BiYO3, which promoted the transfer of photoinduced electrons and the separation of photogenerated charge carriers. This work demonstrates that the TiO2/BiYO3 composites are promising photocatalysts for photocatalytic hydrogen production from water.
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