| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Facile Synthesis of Au Nanocube-CdS Core-Shell Nanocomposites with Enhanced Photocatalytic Activity |
| LIU Xiao-Li1, LIANG Shan1, LI Min2, YU Xue-Feng1**, ZHOU Li1, WANG Qu-Quan1** |
1Key Laboratory of Artificial Micro- and Nano-structures of the Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072
2School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116 |
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| Cite this article: |
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LIU Xiao-Li, LIANG Shan, LI Min et al 2014 Chin. Phys. Lett. 31 064203 |
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Abstract Au nanocube-CdS core-shell nanocomposites are prepared by using a one-pot method in aqueous phase with cetyltrimethylammonium bromide as the surfactant. The extinction properties and photocatalytic activity of Au-CdS nanocomposites are investigated. Compared with the pure Au nanocubes, the Au-CdS nanocomposites exhibit enhanced extinction intensity. Compared with CdS nanoparticles, the Au-CdS nanocomposites exhibit improved photocatalytic activity. Furthermore, the photocatalytic efficiency is even better with the increase in the core size of the Au-CdS nanocomposites. Typically, the photocatalytic efficiency of the Au-CdS with 62 nm sized Au nanocubes is about two times higher than that of the pure CdS. It is believed that the Au-CdS nanocomposites may find potential applications in environmental fields, and this synthesis method can be extended to prepare a wide variety of functional composites with Au cores.
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Published: 26 May 2014
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| PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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73.40.Ns
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(Metal-nonmetal contacts)
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81.16.Be
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(Chemical synthesis methods)
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