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Published on: August 7, 2018
Preparation of ordered mesoporous Ag/WO3 and its highly efficient degradation of acetaldehyde under visible-light
Songmei Sun1, Wenzhong Wang, Shaozhong Zeng
1State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), No. 1295 Dingxi Road, Shanghai 200050, PR China.
Abstract:
A highly active photocatalyst, silver loaded mesoporous WO(3), was successfully synthesized by an ultrasound assisted insertion method. The photodegradation of a common air pollutant acetaldehyde was adopted to evaluate the photocatalytic performance of the as-prepared sample under visible-light irradiation. The photocatalytic activity was about three and six times higher than that of pure mesoporous WO(3) and nitrogen-doped TiO(2), respectively. The photocatalytic mechanism was investigated to understand the much enhanced photocatalytic activity, which was mainly attributed to the largely improved electron-hole separation in the Ag-WO(3) heterojunction.
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