Study of photocatalytic activities of Bi2WO6 nanoparticles synthesized by fast microwave-assisted method

• Published in: Journal of alloys and compounds Vol. 647; pp. 123 - 128
• Main Authors: Phu, Nguyen Dang, Hoang, Luc Huy, Chen, Xiang-Bai, Kong, Meng-Hong, Wen, Hua-Chiang, Chou, Wu Ching
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25-10-2015
• Subjects: Bi2WO6 nanoparticles; Microwave-assisted synthesis; Photocatalytic activity; Photocatalytic activity; Microwave-assisted synthesis; Bi2WO6 nanoparticles
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2015.06.047

We present a study of photocatalytic activities of Bi2WO6 nanoparticles synthesized by fast microwave-assisted method. The photocatalytic activities of the nanoparticles were evaluated by the decolorization of methylene-blue under visible-light-irradiation. Our results show that the surface area of Bi2WO6 nanoparticles plays a major role for improving photocatalytic activity, while visible-light absorption has only a weak effect on photocatalytic activity. This suggests efficient transportation of photo-generated electrons and holes to the oxidation active sites on the surface of nanoparticles, indicating Bi2WO6 nanoparticles synthesized by fast microwave-assisted method are promising for achieving high photocatalytic activity under visible-light-irradiation.
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•The Bi2WO6 nanoparticles were synthesized via fast microwave-assisted method.•The obtained Bi2WO6 nanoparticles exhibited visible-light absorbance.•The surface area of Bi2WO6 nanoparticles plays major role for improving photocatalytic activity.•The Bi2WO6 nanoparticles are promising for achieving high photocatalytic activity under visible-light-irradiation.