Table of Contents
Indian Journal of Materials Science
Volume 2014, Article ID 459674, 9 pages
http://dx.doi.org/10.1155/2014/459674
Research Article

Adsorbent Ability of Treated Peganum harmala-L Seeds for the Removal of Ni (II) from Aqueous Solutions: Kinetic, Equilibrium and Thermodynamic Studies

1Department of Chemistry, Science Faculty, Arak Branch, Islamic Azad University, P.O. Box 38135-567, Arak, Iran
2Process Systems Engineering Center (PROSPECT), Faculty of Chemical Engineering, Universiti Teknologi Malaysia (UTM), P.O. Box 81310 Skudai, Johor, Malaysia
3Department of Agriculture, University of Mehrgan, P.O. Box 37816-54363, Mahalat, Iran

Received 27 December 2013; Accepted 5 February 2014; Published 27 March 2014

Academic Editors: R. K. Dey, S. K. Kansal, and S. S. Sharma

Copyright © 2014 Maryam Ghasemi et al. 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.

Abstract

The main goal of this study was to evaluate the performance of new adsorbent, treated Peganum harmala-L seeds (TPHS), for the removal of Ni (II) from aqueous solution. Batch experiments were performed as a function of various experimental parameters. The adsorption studies included both equilibrium adsorption isotherms and kinetics. Equilibrium data fitted very well with the Langmuir isotherm model. Maximum adsorption capacity was determined 91.74 mg/g at pH 7. Kinetics studies showed better applicability for pseudo-second-order model for both adsorbents. The negative value of confirmed the feasibility and spontaneity of TPHS for Ni (II) adsorption.