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    Chitosan extraction from lobster shells and its grafted with functionalized MWCNT for simultaneous removal of Pb(2+) ions and eriochrome cyanine R dye after their complexation.

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    Authors
    Kheirandish, S.
    Ghaedi, M.
    Dashtian, K.
    Heidari, F.
    Pourebrahim, F.
    Wang, Shaobin
    Date
    2017
    Type
    Journal Article
    
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    Citation
    Kheirandish, S. and Ghaedi, M. and Dashtian, K. and Heidari, F. and Pourebrahim, F. and Wang, S. 2017. Chitosan extraction from lobster shells and its grafted with functionalized MWCNT for simultaneous removal of Pb(2+) ions and eriochrome cyanine R dye after their complexation.. International Journal of Biological Macromolecules. 102: pp. 181-191.
    Source Title
    International Journal of Biological Macromolecules
    DOI
    10.1016/j.ijbiomac.2017.03.035
    ISSN
    1879-0003
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/52739
    Collection
    • Curtin Research Publications
    Abstract

    Chitosan (CS) extracted from lobster shells (Persian Gulf, Iran), was grafted with amino functionalized multiwalled carbon nanotube (MWCNT). This novel material was characterized by FE-SEM and FT-IR and used for the ultrasound-assisted removal of Pb(2+) ions and eriochrome cyanine R (ECR) dye. A central composite design (SCCD) under response surface methodology was used for studying the influences of important variables in removal process such as initial ECR and Pb(2+) ions concentrations, adsorbent mass and sonication time on the removal efficiency. Linear, 2FI, quadratic and cubic models were performed and a quadratic model was selected for analysis of each response. ANOVA for the quadratic model shows the F-value parameter (820.44 and 537.12 for ECR and Pb(2+) ions removal, respectively) and very low p-value (<0.0001), implying that the model was highly significant for understudy analytes adsorption. To achieve maximum removal, the optimum condition was determined and were set as:19.34 and 18.20mgL(-1),0.018g and 9.35min for initial ECR and Pb(2+) ion concentrations, adsorbent mass and sonication time, respectively. At these optimum conditions, 97.06% of ECR and 99.29% of Pb(2+) ions were removed in a short time.

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