期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 20, 页码 7517-7525出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta15446g
关键词
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Type-II semiconductors with p-n heterojunctions have been fabricated by decorating CuS nanostructures on the surface of ZnO nanotubes with the help of a wet-chemical method at low temperature. We are reporting the enhanced visible light photocatalytic efficiency of ZnO/CuS heterostructures. CuO nanostructures were synthesized on the surface of ZnO nanotubes and then the CuO nanostructures were converted to CuS at 80 degrees C to generate the ZnO/CuS heterostructures. These ZnO/CuS heterostructures efficiently decompose methylene blue upon irradiation of visible light at room temperature. A study of the mechanism suggests that the enhanced photocatalytic activity is due to the formation of ZnO/CuS junctions, which leads to the efficient separation of photoinduced carriers.
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