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    Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres

    Access Status
    Fulltext not available
    Authors
    Huang, P.
    Liu, Jian
    Wei, F.
    Zhu, Y.
    Wang, X.
    Cao, C.
    Song, W.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Huang, P. and Liu, J. and Wei, F. and Zhu, Y. and Wang, X. and Cao, C. and Song, W. 2017. Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres. MATERIALS CHEMISTRY FRONTIERS. 1 (8): pp. 1550-1555.
    Source Title
    MATERIALS CHEMISTRY FRONTIERS
    DOI
    10.1039/c7qm00079k
    ISSN
    2052-1537
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/71946
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 the Partner Organisations. Flower-like cobalt aluminum layered double hydroxide (CoAl-LDH) hollow microspheres were synthesized via a one-step solvothermal method without any template. An Ostwald ripening mechanism was proposed for the formation of hollow nanostructures. These flower-like CoAl-LDH hollow microspheres had a high surface area and exhibited excellent selectivity for anionic dyes. The limited space between LDH layers offered size selectivity for adsorbate molecules. For the small molecule methyl orange, the maximum adsorption capacity reached 816.0 mg g-1 under ambient conditions, while for larger molecules such as Eosin B, the adsorption capacity was only 95.1 mg g-1. All these features make the flower-like CoAl-LDH hollow microspheres an excellent adsorbent in water remediation.

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