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Journal of Nanomaterials
Volume 2014 (2014), Article ID 126475, 7 pages
http://dx.doi.org/10.1155/2014/126475
Research Article

Synthesis of CuS/ZnO Nanocomposite and Its Visible-Light Photocatalytic Activity

1College of Textile & Clothing Engineering and Modern Silk National Engineering Laboratory, Soochow University, Suzhou 215006, China
2College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215006, China
3Department of Physics and Center for Marine-Integrated Biomedical Technology, Pukyong National University, Busan 608-737, Republic of Korea

Received 4 December 2013; Accepted 26 February 2014; Published 23 March 2014

Academic Editor: Lian Gao

Copyright © 2014 Lianping Zhu 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

The CuS/ZnO nanocomposite was successfully synthesized by a simple mechanical method, without adding any surfactants. TEM images showed that CuS existed in the nanocomposite and the size of CuS/ZnO nanocomposite particle was around 35 nm. CuS worked as an electron absorber in the nanocomposite, which was beneficial for the improvement of photocatalysis of ZnO. It was also proved by the experiments performed under the visible light irradiation that CuS could help ZnO degrade methylene blue (MB). The catalytic efficiency of the nanocomposites reached the highest value when 0.5 wt% CuS was added. In addition, compared with pure ZnO, the CuS/ZnO nanocomposite exhibited a better photochemical stability up to 5 catalytic cycles. More importantly, CuS did not reduce the antibacterial property of ZnO. All these results indicated that as-prepared samples had some potential values in practical applications.