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    Monodisperse Ca 0.15Fe 2.85O 4 microspheres: Facile preparation, characterization, and optical properties

    Access Status
    Fulltext not available
    Authors
    Shen, Y.
    Zhao, Q.
    Li, Xin Yong
    Zhang, D.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Shen, Y. and Zhao, Q. and Li, X.Y. and Zhang, D. 2012. Monodisperse Ca 0.15Fe 2.85O 4 microspheres: Facile preparation, characterization, and optical properties. Journal of Materials Science. 47 (7): pp. 3320-3326.
    Source Title
    Journal of Materials Science
    DOI
    10.1007/s10853-011-6171-7
    ISSN
    0022-2461
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/46024
    Collection
    • Curtin Research Publications
    Abstract

    Micro/nanospheres have been intensively investigated recently because of their attractive applications. While long reaction times, harsh reaction conditions or multiple steps are generally required for the effective synthesis of ferrites, in this study, Ca 0.15Fe 2.85O 4 microspheres were successfully fabricated via a facile one-pot solvothermal method, utilizing polyethylene glycol as a surfactant. XRD, HRTEM, and SEM analysis revealed that the Ca 0.15Fe 2.85O 4 microspheres prepared were monodisperse in nature, with uniform diameters of about 450 nm and porous interior structure. The Ca 0.15Fe 2.85O 4 microspheres exhibited a clear absorption capacity in the visible light region and the band-gap energy was about 1.95 eV. Furthermore, photovoltaic response of the Ca 0.15Fe 2.85O 4 microspheres was shown in the UV-Visible spectral region, due to the effective photo-induced charge carrier separation. The Ca 0.15Fe 2.85O 4 microspheres may find potential applications in many fields, such as photocatalysis, photovoltaics, sensors, optical, and biomedical devices. © 2011 Springer Science+Business Media, LLC.

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