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    Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays

    Access Status
    Fulltext not available
    Authors
    Li, Xin Yong
    Teng, W.
    Zhao, Q.
    Wang, L.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Li, X.Y. and Teng, W. and Zhao, Q. and Wang, L. 2011. Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays. Journal of Nanoparticle Research. 13 (12): pp. 6813-6820.
    Source Title
    Journal of Nanoparticle Research
    DOI
    10.1007/s11051-011-0589-3
    ISSN
    1388-0764
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/21792
    Collection
    • Curtin Research Publications
    Abstract

    Self-organized anodic TiO 2 nanotube arrays were sensitized with polyaniline by a simple electrodeposite method. The morphological and structural properties studied by scanning electron microscopy and fourier transform infrared spectroscopy reveal the successful deposition of polyaniline on the nanotube arrays. The polyaniline-sensitized TiO 2 nanotube arrays exhibit a distinguishable red shift on the absorption spectrum. Electrochemical impedance investigation attested to a significant improvement of the interfacial electron-transfer kinetics for promoted electron-hole effective separation. The as-prepared samples showed a high efficiency for the photoelectrocatalytic degradation of rhodamine B under visible-light irradiation (?>400 nm). The enhanced photoelectrocatalytic activity could be attributed to the extended absorption in the visible-light region by the polyaniline and the effective separation of photogenerated carriers driven by the photoinduced potential difference generated at the polyaniline/TiO 2 nanotube arrays interface. © 2011 Springer Science+Business Media B.V.

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