Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

header
Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2012 Vol: 4 Issue: 6

Thermodynamics of adsorption of Pb (II) and Cd (II) metal ions from aqueous solution by Punica granatum L. husk

Abstract

Temperature effects on adsorption of Pb (II) and Cd (II) onto Punica granatum L. husk for optimized predetermined conditions has been studied by batch adsorption experiment for different contact time between adsorbate and adsorbent. The adsorption was found to increase with rise in temperature. Thermodynamic functions like equilibrium constant (K), free energy (∆G 0 ), entropy (∆S 0 ) and enthalpy (∆H 0 ) for adsorption were estimated. The adsorption process was found to be endothermic with increase of randomness at solid-liquid interface.