Journal
APPLIED SURFACE SCIENCE
Volume 258, Issue 7, Pages 2473-2478Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2011.10.075
Keywords
Graphene-CdS composites; Photocatalysis; Fluorescence; Hydroxyl radicals
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Funding
- Natural Science Foundation of China [61176004]
- Basic and Frontier Research Programs of Henan Province [092300410242, 112300410094]
- Natural Science Foundation of Education Department of Henan Province [2010B150012, 2011A150017]
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Graphene-CdS (G-CdS) composites were synthesized through a simple solvothermal method. The formed CdS nanospheres were homogeneously scattered on the surface of graphene sheets. Fluorescence quenching effect of the G-CdS composites indicated effective transfer of photo-excited electrons from CdS to graphene, suppressed the recombination of photo-generated electron-hole pairs, so that the enhanced visible light induced photodegradation activity for Rhodamine B (RhB) was achieved. Based on the high photocatalytic activity and well stability, the G-CdS composite containing 70% CdS can be expected to be a practical visible light photocatalyst. (C) 2011 Elsevier B.V. All rights reserved.
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