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    Adsorption and Kinetic Study on Sn2+ Removal Using Modified Carbon Nanotube and Magnetic Biochar

    Access Status
    Fulltext not available
    Authors
    Mujawar, Mubarak
    Ruthiraan, M.
    Sahu, J.
    Abdullah, E.
    Jayakumar, N.
    Sajuni, N.
    Tan, J.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Mujawar, M. and Ruthiraan, M. and Sahu, J. and Abdullah, E. and Jayakumar, N. and Sajuni, N. and Tan, J. 2013. Adsorption and Kinetic Study on Sn2+ Removal Using Modified Carbon Nanotube and Magnetic Biochar. International Journal of Nanoscience. 12 (6): Aricle ID 1350044.
    Source Title
    International Journal of Nanoscience
    DOI
    10.1142/S0219581X13500439
    ISSN
    0219-581X
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/60985
    Collection
    • Curtin Research Publications
    Abstract

    The effectiveness of stannum (Sn 2+ ) removal from aqueous solution by using magnetic biochar and functionalized multiwalled carbon nanotube (FMWCNT) was investigated. The effect of various factors, namely pH, adsorbent dosage, agitation speed and contact time was statistically studied through analysis of variance (ANOVA). Statistical analysis revealed that the optimum conditions for the highest removal of Sn 2+ are at pH 5, dosage 0.1 g with agitation speed and time of 100 rpm and 90 min, respectively. At the initial concentration of 0.1 mg/L, the removal efficiency of Sn 2+ using FMWCNTs was 93% and 85% with magnetic biochar. The Langmuir and Freundlich constant for both FMWCNTs and magnetic biochar were 13.397 L/mg, 18.634 L/mg and 17.719 L/mg, 25.204 L/mg, respectively. Hence, results prove that FMWCNTs are a better adsorbent with a higher adsorption capacity compared to magnetic biochar. Adsorption kinetic obeyed pseudo-second-order.

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