Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 20, Issue 14, Pages 2801-2806Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b917240h
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A series of titanium dioxide and graphene sheets (GSs) composites were synthesized with a sol-gel method using tetrabutyl titanate and graphite oxide (GO) as the starting materials. The obtained TiO2/GSs photocatalysts are characterized by X-ray diffraction, N2 adsorption analysis, Raman spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and ultravioletvisible (UV-vis) diffuse reflectance spectroscopy. The photocatalytic activity of the as-prepared samples was evaluated by hydrogen evolution from water photo-splitting under UV-vis illumination. The influence of GSs content and calcinations atmosphere on the photocatalytic activity was also investigated. The results show that both GSs content and the calcinations atmosphere can affect the photocatalytic activity of the obtained composites.
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