期刊
JOURNAL OF MATERIALS RESEARCH
卷 25, 期 1, 页码 182-188出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2010.0007
关键词
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资金
- Australian Research Council [DP0666345, DP0773490]
- China Ministry of Science and Technology (MOST) International Sci & Tech Cooperation and Exchange [2008DFA51230]
- National Key Basic Science Research Program [2007CB936603]
Aimed at designing an efficient visible light active photocatalyst and suppressing the self-corrosion tendency of CdS nanoparticles, a novel composite consisting of CdS nanoparticles and exfoliated two-dimensional (2D) TiO2 nanosheets was successfully fabricated using a simple self-assembly process. The prepared samples were characterized using various techniques including x-ray diffraction, ultraviolet-visible absorption spectroscopy, x-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. It was found that the exfoliated 2D nanosheets played an important role as an ultrathin coating to suppress the photocorrosion of CdS nanoparticles, evidenced by inductively coupled plasma-atomic emission spectrometer analysis. The resultant CdS/TiO2 composites exhibited enhanced photocatalytic activity in the oxidation of Rhodamine B in water under visible light irradiation (lambda > 420 nm).
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