CdS-ZnO composite nanorods: Synthesis, characterization and application for photocatalytic degradation of 3,4-dihydroxy benzoic acid |
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| Authors: | J Nayak SN Sahu S Nozaki |
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| Institution: | a University of Electro-Communications, 1-5-1-Chofugoka, Chofu-Shi, Tokyo 1828585, Japan
b Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India |
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| Abstract: | Well-aligned arrays of CdS-ZnO composite nanorods were grown on indium tin oxide substrates. ZnO nanorods, deposited by a low temperature aqueous chemical growth technique, were dip coated with CdS. The CdS-ZnO nanorods were polycrystalline as confirmed from the low angle X-rays diffraction study. Photon to current conversion efficiency of CdS-ZnO composite nanorod was observed to be higher than that of CdS. In the micro-Raman spectrum, we observed longitudinal optical modes of CdS and ZnO showing their co-existence. The appealing application of CdS-ZnO nanorod as a visible photocatalyst was demonstrated and the possible mechanism was discussed. |
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| Keywords: | Nanorods Seed layer Photocatalysis Benzoic acid |
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