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The Scientific World Journal
Volume 2013, Article ID 458106, 8 pages
http://dx.doi.org/10.1155/2013/458106
Research Article

Synthesis and Photocatalytic Properties of ZnWO4 Nanocrystals via a Fast Microwave-Assisted Method

Key Lab of Environment Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China

Received 6 April 2013; Accepted 8 May 2013

Academic Editors: B. Huang and L. Jing

Copyright © 2013 Jing Yan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

High crystallinity of ZnWO4 nanoparticles has been successfully synthesized via a highly effective and environmentally friendly microwave route by controlling the reaction time and temperature. The products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and Fourier infrared spectrum (FT-IR). The crystallinity was enhanced with the increase of the reaction temperature and time. The photocatalytic activities of ZnWO4 nanocrystals were evaluated by testing the photodegradation of rhodamine B (RhB) dye under ultraviolet (UV) light irradiation. The results indicated that as-prepared ZnWO4 was highly effective for the degradation of RhB. The degradation rate of RhB reached 98.01% after 6 h of UV illumination.