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Vol. 25 No. 15 (2013): Vol 25 Issue 15

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Kinetic and Isothermal Biosorption Studies of Co(II), Cu(II) and Ni(II) Using Polyalthia longifolia Leaf Powder

https://doi.org/10.14233/ajchem.2013.14713
Rabia Rehman
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan
Umer Shafique
Department of Ecological Chemistry, Helmholtz Centre for Environmental Research, Leipzig, Germany
Jamil Anwar
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan
Samina Ghafoor
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan

Corresponding Author(s) : Rabia Rehman

grinorganic@yahoo.com

Asian Journal of Chemistry, Vol. 25 No. 15 (2013): Vol 25 Issue 15

Abstract

Kinetic and isothermal biosorption studies of cobalt, copper and nickel ions using Polyalthia longifolia leaf powder has been carried out in this study on batch scale. Various factors like adsorbent dose, pH, initial concentration of metal ion and agitation time were optimized. Maximum biosorption of Cu(II), Co(II) and Ni(II) occurred at pH 6, 6 and 5, respectively. Isothermal models like Langmuir, Freundlich and Temkin were studied and observed to fit well. The maximum removing capacity of Polyalthia longifolia leaves was found to be 1.74, 3.99 and 4.08 mg/g for copper, cobalt and nickel ions, respectively following pseudo-second-order model. So, Polyalthia longifolia leaves found to besuitable for amputation of cobalt, copper and nickel ions in an environmentally benign way.

Keywords

Biosorption Polyalthia longifolia Heavy metals Isotherms Kinetics
Rehman, R., Shafique, U., Anwar, J., & Ghafoor, S. (2013). Kinetic and Isothermal Biosorption Studies of Co(II), Cu(II) and Ni(II) Using Polyalthia longifolia Leaf Powder. Asian Journal of Chemistry, 25(15), 8285–8288. https://doi.org/10.14233/ajchem.2013.14713
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