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Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies

  • Authors
    Corresponding: D.Anitha
    Co-authors: Anitha D.
    Ramadevi A.
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  • gnest_03188_published.pdf
  • Paper ID
    gnest_03188
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.003188
Graphical abstract
Abstract

An adsorbent was prepared from Mangosteen shell using sulphuric acid and sodium bicarbonate as modifiers. Bicarbonate treated mangosteen shell (BTMC) was characterized using FT- IR, SEM, EDAX and XRD data. The Freundlich adsorption isotherm model gives a good fit. The maximum adsorption capacities of BTMC were found to be 58.48 mg g-1 and 49.75 mg g-1 for Pb (II) and. Hg (II). Adsorption of Pb (II) and Hg (II) followed pseudo-second-order kinetics. The adsorption mechanism was explained using the Weber and Morris's intra-particular diffusion process. Batch mode studies with synthetic wastewater suggest that BTMC can be efficiently used in wastewater treatment.

Keywords
Adsorption Langmuir Temkin wastewater.
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Anitha, D. and Ramadevi, A. (2021) “Modified Mangosteen shell carbon in the removal of Pb (II) and Hg (II) from aqueous solution-Isotherm and Kinetic studies”, Global NEST Journal, 23(1). Available at: https://doi.org/10.30955/gnj.003188.
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  • gnest_03188_published.pdf