Enhanced Photocatalytic Activity of ZnO/CuO Nanocomposites Synthesized by Hydrothermal Method

In this paper, we have demonstrated a facile and low-cost synthesis of the ZnO/CuO nanocomposites by two-step hydrothermal methods. The photocatalytic properties of the as-synthesized ZnO/CuO nanocomposites have been evaluated by the photodegradation of methylene blue(MB) and methyleneorange(MO) und...

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Bibliographic Details
Published in:Nano-micro letters 2013-01, Vol.5 (3), p.163-168
Main Authors: Chang, Tongqin, Li, Zijiong, Yun, Gaoqian, Jia, Yong, Yang, Hongjun
Format: Article
Language:English
Subjects:
Engineering
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
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Summary:In this paper, we have demonstrated a facile and low-cost synthesis of the ZnO/CuO nanocomposites by two-step hydrothermal methods. The photocatalytic properties of the as-synthesized ZnO/CuO nanocomposites have been evaluated by the photodegradation of methylene blue(MB) and methyleneorange(MO) under UV irradiation. Experimental results show that MB and MO can be degraded completely within 15 and 25 min by the ZnO/CuO nanocomposites and its photodegradation rate is 6 times faster than that of pure ZnO. This enhanced photocatalytic activity can be ascribed to the low recombination probability of photo-induced carriers due to the efficient charge transfer in the nanocomposites. The as-synthesized ZnO/CuO nanocomposite may be a promising candidate for dye photodegradation of wastewaters.
ISSN:2150-5551
2311-6706
2150-5551
DOI:10.1007/bf03353746