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E-Journal of Chemistry
Volume 7, S1, Pages S377-S385

Removal of Cu(II) Ions by Leucaena Leucocephala (Subabul) Seed Pods from Aqueous Solutions

A. K. Patil2 and V. S. Shrivastava1

1Center for P.G. Research in ChemistryG.T.P. College. Nandurbar-425412 (M.S.), India
2Department of ChemistryDhanaji Nana Mahavidyalaya, Faizpur-425503 (M.S.), India

Received 20 April 2010; Accepted 15 June 2010

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In this method, Leucaena leucocephala seed pods (LLSP) have been used for removal of Cu(II) ions from aqueous solution. Batch adsorption experiments were conducted to study the effect of process parameters like pH, contact time initial Cu(II) ions concentration and adsorbent dose. The maximum adsorption of Cu(II) ions on Leucaena leucocephala seed pods was 94.17% at pH 5. The amount of metal adsorbed per unit weight of adsorbent increases with time and reach equilibrium after 30 minutes of shaking time for the different initial metal concentrations. The Freundlich and Langmuir isotherm equations were applied for the equilibrium adsorption data and the various isotherm parameters were evaluated. The obtained plots were linear as evident from R2 values close to unity. The data agreed very well with the pseudo second-order kinetic model.