Journal :   Asian Journal of Research in Chemistry

Volume No. :   7

Issue No. :  6

Year :  2014

Pages :   565-569

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Removal of Chromium (VI) from Aqueous Solution using a Low Cost Activated Carbon Prepared from Prosopis juliflora by Adsorption



Address:   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.
*Corresponding Author
DOI No:

ABSTRACT:
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.
KEYWORDS:
Adsorption, Chromium (VI), PJBC, kinetic, Thermodynamic.
Cite:
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.
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