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    Inorganic-organic based novel nano-conjugate material for effective cobalt(II) ions capturing from wastewater

    Access Status
    Fulltext not available
    Authors
    Awual, M.
    Alharthi, N.
    Hasan, M.
    Karimd, M.
    Islame, A.
    Znad, Hussein
    Hossain, M.
    Halimh, M.
    Rahman, M.
    Khaleque, M.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Awual, M. and Alharthi, N. and Hasan, M. and Karimd, M. and Islame, A. and Znad, H. and Hossain, M. et al. 2017. Inorganic-organic based novel nano-conjugate material for effective cobalt(II) ions capturing from wastewater. Chemical Engineering Journal. 324: pp. 130-139.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2017.05.026
    ISSN
    1385-8947
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/53113
    Collection
    • Curtin Research Publications
    Abstract

    Simultaneous detection and removal of heavy metals with high sensitivity and adsorption capacity of a suitable material is an ultimate goal in industry for the purification of contaminated water samples. This study was investigated the use of functional ligand immobilized mesoporous silica based nano-conjugate materials for efficient detection and removal of cobalt (Co(II)) ions from wastewaters with optical color optimization. The mesoporous silica, newly prepared organic ligand and the nano-conjugate materials were characterized systematically. The effect of pH on the sensitivity and selectivity of the formed complexes was studied after adding the Co(II) ions in specific condition. Under optimum conditions, the nano-conjugate materials was formed visible color after capturing of the Co(II) ions. The data of calibration graphs were linear in the low concentration level of Co(II) ions with the detection limit of 0.33 µg/L. The performance of the solid-phase adsorption was enriched the Co(II) ions efficiently into the materials surface. The kinetic performance was high and the isotherm study was conducted using the Langmuir adsorption model. The results exhibited very high adsorption capacity of 170.17 mg/g and this capacity was compared with different forms of materials. In addition, the materials was adsorbed the Co(II) ions with higher 96% from the synthetic multi-mixture metal ions containing samples and this is confirmed the materials high selectivity for efficient detection and adsorption of Co(II) ions. Desorption experiments were carried out with 0.30 M HCl proved that without significant loss in its original performance that could be reused in several cycles. Therefore, the proposed materials here is an interesting and promising attempt for the trace Co(II) ions capturing in water samples and will have much more applied field.

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