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    Vacuum-assisted impregnation derived α-Bi2O3/TiO2 nanotube arrays with enhanced photoelectrochemical activity

    Access Status
    Fulltext not available
    Authors
    Liu, Y.
    Zhao, Q.
    Li, Xin Yong
    Shi, Y.
    Li, T.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Liu, Y. and Zhao, Q. and Li, X.Y. and Shi, Y. and Li, T. 2015. Vacuum-assisted impregnation derived α-Bi2O3/TiO2 nanotube arrays with enhanced photoelectrochemical activity. Materials Letters. 158: pp. 104-107.
    Source Title
    Materials Letters
    DOI
    10.1016/j.matlet.2015.05.146
    ISSN
    0167-577X
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/41501
    Collection
    • Curtin Research Publications
    Abstract

    With the aim of improving the performance of TiO2 nanotube arrays (NTAs), α-Bi2O3 nanoparticles were successfully implanted into the nanotube arrays via a vacuum-assisted impregnation strategy for the first time. Photoelectrochemical characterizations and comparative investigations on the degradation efficiency of 2-Chlorophenol demonstrate the enhanced photo activity of α-Bi2O3/TiO2 nanotube arrays over the pure nanotube arrays. The as-prepared α-Bi2O3/TiO2-NTAs grown on Ti behaved as a recyclable and stable electrode and outperformed pure TiO2-NTAs. The α-Bi2O3 nanoparticles modified TiO2 nanotube arrays could favor the separation and transfer of photoinduced charge carriers, which promote the energy conversion and the generation of reactive radicals upon irradiation. The predominant superoxide radicals were evidenced by electron spin resonance signals.

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