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    Biodegradable natural carbohydrate polymeric sustainable adsorbents for efficient toxic dye removal from wastewater

    Access Status
    Fulltext not available
    Authors
    Md. Munjur, H.
    Hasan, M.N.
    Awual, Rabiul
    Islam, M.M.
    Shenashen, M.A.
    Iqbal, J.
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    Md. Munjur, H. and Hasan, M.N. and Awual, M.R. and Islam, M.M. and Shenashen, M.A. and Iqbal, J. 2020. Biodegradable natural carbohydrate polymeric sustainable adsorbents for efficient toxic dye removal from wastewater. Journal of Molecular Liquids. 319: Article No. 114356.
    Source Title
    Journal of Molecular Liquids
    DOI
    10.1016/j.molliq.2020.114356
    ISSN
    0167-7322
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/88605
    Collection
    • Curtin Research Publications
    Abstract

    The toxic anionic dye of methyl orange encapsulation was studied using biodegradable natural carbohydrate polymeric adsorbents of rice flour (RF) and graham flour (GF). The adsorbents were characterized by several instrumentations to understand the functionality and potential use. The dye adsorption parameter was measured based on the solution acidity, contact time, initial concentration effect, competing anions affinity, bonding mechanism, maximum adsorption capacity and reuses with biodegradability. The solution acidity was exhibited the key factor, and the suitable pH 7.0 and 5.50 were selected for RF and GF adsorbent, respectively based on the efficiency. The competing ions were not adversely affected in the dye adsorption as defined by the stable bonding mechanism. The adsorption data were highly fitted with the Langmuir adsorption model with monolayer coverage. The determined maximum adsorption was 173.24 and 151.27 mg/g for RF and GF, respectively, which was comparable with the other forms of materials. The desorption data was promising as the RF and GF adsorbents were used several cycles and therefore, the biodegradable adsorbents are promising to use in the real sample treatment to clean up the contaminated water.

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