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Preparation and Photocatalytic Activity of ZnO/CdS Core/Shell Structure Nanopowders
Corresponding Author(s) : Yan Li
Asian Journal of Chemistry,
Vol. 26 No. 5 (2014): Vol 26 Issue 5
Abstract
Zinc oxide nanopowders were prepared by a polyacrylamide-gel method, ZnO/ZnS and ZnO/CdS core/shell structure nanopowders were prepared by ion-exchange method, respectively. The as-prepared samples were characterized by X-ray diffraction, high resolution transmission electron microscopy (HRTEM). The results indicate that the hexagonal phase CdS nanoparticles grow on the surfaces of Wurtzite structure ZnO particles to form core/shell structure. The photocatalytic activities of the ZnO/CdS core/shell structure nanopowders were evaluated by degradation of methyl orange under UV, solar light and solar-simulated light irradiation. The results show that ZnO/CdS core/shell structure nanopowders exhibit an appreciable photocatalytic property, especially under UV and solar light irradiation.
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- G. Wang, X. Yang, F. Qian, J.Z. Zhang and Y. Li, Nano Lett., 10, 1088 (2010); doi:10.1021/nl100250z.
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References
G. Wang, X. Yang, F. Qian, J.Z. Zhang and Y. Li, Nano Lett., 10, 1088 (2010); doi:10.1021/nl100250z.
M. Zirak, O. Moradlou, M.R. Bayati, Y.T. Nien and A.Z. Moshfegh, Appl. Surf. Sci., 273, 391 (2013); doi:10.1016/j.apsusc.2013.02.050.
S.K. Panda, S. Chakrabarti, B. Satpati, P.V. Satyam and S. Chaudhuri, J. Phys. D; Appl. Phys., 37, 628 (2004); doi:10.1088/0022-3727/37/4/014.
M.W. Shao, Q. Li, B. Xie, J. Wu and Y.T. Qian, Mater. Chem. Phys., 78, 288 (2002); doi: 10.1016/S0254-0584(02)00349-8.
J. Chung, J. Myoung, J. Oh and S. Lim, J. Phys. Chem. C, 114, 21360 (2010); doi:10.1021/jp109355h.