M. Thilagavathi, S. Arivoli, V. Vijayakumaran
M. Thilagavathi1, S. Arivoli2* and V. Vijayakumaran3
1Department of Chemistry, Pattukkottai Polytechnic College, Pattukkottai - 614 601, India.
2 Associate Professor and HOD of Chemistry, Thiru Vi Ka Govt. Arts College, Thiruvarur- 610 003, India.
3 Anna University, University College of Engineering, Pattukkottai - 614 701, India.
Volume - 7,
Issue - 6,
Year - 2014
This paper presents the feasibility for the removal of chromium (VI) from aqueous solution using an activated carbon prepared from Prosopis juliflora bark. Batch adsorption experiments were carried out as a function of contact time, adsorbent dosage, pH, adsorbate concentration, and temperature. A comparison of adsorption capacity and adsorption intensity were examined in Freundlich and Langmuir isotherms. The nature of adsorption and feasibility were evaluated with thermodynamic parameters like the change in enthalpy (?H0), change in entropy (?S0) and change in Gibbs free energy (?G0). The negative ?G0and ?H0 values indicates the adsorption process was spontaneous and exothermic in nature. The kinetics of adsorption process was analyzed with Pseudo second order and intraparticle diffusion equations.
Cite this article:
M. Thilagavathi, S. Arivoli, V. Vijayakumaran. Removal of Chromium (VI) from Aqueous Solution using a Low Cost Activated Carbon Prepared from Prosopis juliflora by Adsorption. Asian J. Research Chem. 7(6): June 2014; Page 565-569.