Journal
CATALYSIS COMMUNICATIONS
Volume 17, Issue -, Pages 99-103Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2011.10.023
Keywords
CNTs-WO3; Hybrid nanostructures; Solvothermal; Photocatalytic degradation
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The CNTs-WO3 hybrid nanostructures were fabricated by solvothermal synthesis. The morphologies, phase structures and optical properties of the nanostructures were investigated by TEM, XRD, UV-vis DRS and XPS respectively. The CNTs-WO3 hybrid nanostructures exist higher photocatalytic activity than pure WO3 nanosheets and the mechanical mixture of WO3 and CNTs for the degradation of methyl blue (MB) under visible light. This is attributed to their large surface area, absorption enhancement in visible light region and effective separation of electrons and holes. The presence of radical scavengers such as KI, Fe3+ and methanol in photocatalytic experiments demonstrates that photogenerated electrons are responsible for the photocatalytic degradation of MB on CNTs-WO3. (C) 2011 Elsevier B.V. All rights reserved.
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