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  • Chem Sci Trans., 2014, 3(4),  pp 1228-1241  

    DOI:10.7598/cst2014.884

    Research Article

    Biosorptive Removal of Cu(II) from Aqueous Solutions by Using Carissa carandas and Syzygium aromaticum

  • SURESH MAHIYA, GIUSY LOFRANO and S K SHARMA*
  • Green Chemistry & Sustainability Research Group, Department of Chemistry, JECRC University, Jaipur-303905, India
    Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 13284084 Fisciano (Salerno), Italy
  • Abstract

    Biosorption of copper from aqueous solutions by Carissa carandas and Syzygium aromaticum was investigated in batch mode. Biosorptivity of both of these biosorbents has been correlated with the pH change, agitation time and dose of adsorbent and concentration of metal ions in the solution. Biosorbent Carissa carandas leaf powder showed higher sorption efficiency than that of biosorbent Syzygium arometicum powder under identical experimental conditions. Also, the adsorption of Cu(II) onto Syzygium arometicum was best described by the Langmuir isotherm model. The maximum adsorption capacities estimated from Langmuir isotherm model for Cu(II) were 54.2 mg/g and 76.61 mg/g for Carissa carandas and Syzygium arometicum respectively.

    Keywords

    Green Chemistry, Heavy metals, Adsorption, Biosorption, Carissa carandas<, Syzygium aromaticum, Langmuir isotherm, Frenduilich isotherm

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