State 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.
J Hazard Mater. 2010 Jun 15;178(1-3):427-33. doi: 10.1016/j.jhazmat.2010.01.098. Epub 2010 Jan 25.
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.
通过超声辅助插入法成功合成了一种高效光催化剂，负载银的介孔 WO(3)。采用可见光照射下常见空气污染物乙醛的光降解来评价所制备样品的光催化性能。与纯介孔 WO(3)和氮掺杂 TiO(2)相比，其光催化活性分别提高了约 3 倍和 6 倍。研究了光催化机理以了解大大提高的光催化活性，这主要归因于 Ag-WO(3)异质结中电子-空穴分离的大大提高。
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