Adsorption of methyl violet from aqueous solution using gum xanthan/Fe3O4 based nanocomposite hydrogel

H. Mittal, Vaneet Kumar, Saruchi, Suprakas Sinha Ray

    Research output: Contribution to journalArticlepeer-review

    132 Scopus citations

    Abstract

    This research paper reports the utilization of gum xanthan-grafted-polyacrylic acid and Fe3O4 magnetic nanoparticles based nanocomposite hydrogel (NCH) for the highly effective adsorption of methyl violet (MV) from aqueous solution. Synthesized NCH was characterized using various techniques, such as FTIR, XRD, SEM-EDS, TEM and BET. Adsorption behavior of NCH was studied for the adsorption of MV and it was found to remove 99% dye from the solution. Adsorption process followed Langmuir isotherm model (qe = 642 mg/g) and pseudo-second-order kinetics model. Thermodynamic studies suggested that the adsorption process was endothermic and spontaneous. Moreover, the adsorbent was successfully utilized for successive five cycles of adsorption-desorption.

    Original languageBritish English
    Pages (from-to)1-11
    Number of pages11
    JournalInternational Journal of Biological Macromolecules
    Volume89
    DOIs
    StatePublished - 1 Aug 2016

    Keywords

    • Adsorption
    • Gum xanthan
    • Isotherms
    • Kinetics
    • Methyl violet
    • Nanocomposite hydrogel

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