Preparation and Visible Light Photocatalytic Activity of Bi₂WO₆ Hollow Microspheres

Abstract:

Photocatalytic technology as a means of degradation of pollutants had been widespread concerned. In the past three decades, titanium dioxide (TiO₂) has become one of the most extensively studied metal oxides because of its excellent photocatalytic activity and photoinduced hydrophilicity ^[1, . But TiO₂ only absorbs wavelengths in the near-UV region (λ<400nm), which is about 3% of the solar spectrum and 53% visible light was can not efficiently utilized for the degradation of organic pollutants. Therefore, it is crucial to explore visible-light-induced photocatalysts. In recent years, in addition to traditional oxides, some complex oxides have been found under visible light driven have a good photocatalytic activity, Such as, N-doped TiO₂ ^[, BiOX (X=Cl, Br, I) ^[, Bi₂MoO₆ ^[ and so on. Nevertheless, such efforts have not achieved satisfactory results aspects of making full use of the visible-light. Therefore, it is still a great challenge to design efficient visible-light driven photocatalysts.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1323-1326
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1323
• Online since: December 2013
• Authors: Ming Sheng Gui, Peng Fei Wang, Ji Gang Yuan, Yan Qing Li, Wen Gang Zeng
• Keywords: Bi₂WO₆, Hollow Microspheres, Nanoplatelets, Photocatalysis

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