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    Clickable Periodic Mesoporous Organosilicas: Synthesis, Clickability and Adsorption of Antibiotics

    Access Status
    Fulltext not available
    Authors
    Gao, J.
    Zhang, X.
    Xu, S.
    Tan, F.
    Li, X.
    Zhang, Y.
    Qu, Z.
    Quan, X.
    Liu, Jian
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Gao, J. and Zhang, X. and Xu, S. and Tan, F. and Li, X. and Zhang, Y. and Qu, Z. et al. 2014. Clickable Periodic Mesoporous Organosilicas: Synthesis, Clickability and Adsorption of Antibiotics. Chemistry - A European Journal. 20: pp. 1957-1963.
    Source Title
    Chemistry - A European Journal
    DOI
    10.1002/chem.201303778
    ISSN
    09476539
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/37614
    Collection
    • Curtin Research Publications
    Abstract

    Pharmaceutical antibiotics are not easily removed from water by conventional water-treatment technologies and have been recognized as new emerging pollutants. Herein, we report the synthesis of clickable azido periodic mesoporous organosilicas (PMOs) and their use as adsorbents for the adsorption of antibiotics. Ethane-bridged PMOs, functionalized with azido groups at different densities, were synthesized by the co-condensation of 1,2-bis(trimethoxysilyl) ethane (BTME) and 3-azidopropyltrimethoxysilane (AzPTMS), in the presence of nonionic-surfactant triblock-copolymer P123, in an acidic medium. Four different alkynes were conjugated to azide-terminated PMOs by means of an efficient click reaction. The clicked PMOs showed improved adsorption capacity (241 micrograms g-1) for antibiotics (ciprofloxacin hydrochloride) compared with azido-functionalized PMOs because of the enhanced pie–pi stacking interactions. These results indicate that click reactions can introduce multifunctional groups onto PMOs, thus demonstrating the great potential of PMOs for environmental applications.

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