Photocatalytic Properties of WO₃ Particles with Different Grain Sizes

Abstract:

WO₃ particles with different grain sizes were prepared by a thermal evaporation method. The composition, morphology, and optical properties of the samples were analyzed by powder X-ray diffraction, scanning electron microscopy, and UV–vis absorption and photoluminescence spectroscopy. Their photocatalytic properties were evaluated by decomposing methylene blue in aqueous phase. It was found that the smaller the grain size of the prepared WO₃ particles, the better the degradation effect on methylene blue.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 284-287
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.284
• Online since: July 2016
• Authors: Zhen Guang Shen, Zhi Jian Peng*, Jing Wen Qian, Xiu Li Fu
• Keywords: Optical Properties, Photocatalysis, Size Control, WO₃

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