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    Properties of a three-dimensionally ordered macro-mesoporous carbon-doped TiO2 composite catalyst

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    Date
    2013-11
    Author
    Sui, Wubin
    Zheng, Jingtang
    Pittman Jr., Charles U.
    Bensalah, Nasr
    Wu, Mingbo
    Zhao, Yucui
    ...show more authors ...show less authors
    Metadata
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    Abstract
    This study aimed to develop an effective, environmentally benign composite catalyst composed of carbon materials and titanium dioxide (TiO2). Carbon-doped titanium dioxide (C-TiO2) was prepared by coating TiO2 onto macro-mesoporous carbon (MMC). The structure, morphology and surface chemistry states of the C-TiO2 were characterized by XRD, TEM, XPS, UV-vis and FTIR. The photocatalytic activity of C-TiO2 was evaluated based on the decomposition of an aqueous methyl orange solution in visible light. C-TiO2 significantly improved photocatalytic activity. A possible mechanism for the improvement of the photocatalytic activity of C-TiO2 in visible light was proposed. The results of the analysis suggested that MMC played key roles as the support, absorbent, location of photo-generated electron transfer, and carbon-doping source during methyl orange photodegradation.
    DOI/handle
    http://dx.doi.org/10.1142/S1793604713500689
    http://hdl.handle.net/10576/4399
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    • Chemistry & Earth Sciences [‎416‎ items ]

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