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Author(s): V. Vijayakumaran, S. Arivoli


DOI: Not Available

Address: V. Vijayakumaran1 and S. Arivoli2*
¬1Centre for Research and Development, PRIST University, Thanjavur-613 403, India
2Department of Chemistry, Thiru. VI. Ka. Government Arts College, Thiruvarur-610 003, India
*Corresponding Author

Published In:   Volume - 4,      Issue - 11,     Year - 2011

The adsorption behavior of Chromium (VI) ions from aqueous solution on Odina Wodier (OW) bark carbon was investigated as a function of parameters such as adsorbent dose, initial Chromium (VI) ions concentration, and effect of solution pH, contact time and temperature. The Freundlich and Langmuir adsorption models were applied to describe the equilibrium isotherms. From these experimental data and RL value indicate the adsorption process is favourable. The thermodynamic parameters such as ?H0, ?S0 and ?G0 were evaluated and the adsorption process was physical adsorption. The pseudo-first-order, pseudo-second-order, Elovich kinetic models and the intra-particle diffusion model were used to fit the experimental data by using linear regression analysis method. The high correlation coefficient (?) values indicate the fitness of the model. The mechanism of adsorption is confirmed by the analytical tools such as FT-IR, XRD and SEM images. The kinetic of this process having high correlation coefficient (?) were pseudo-second-order and intra-particle diffusion models. The Odina Wodier (OWC) bark carbon has high adsorption capacity and adsorption rate for the removal of Chromium (VI) ions from aqueous solution.

Cite this article:
V. Vijayakumaran, S. Arivoli. Adsorption Equilibrium Thermodynamics and Kinetics Studies of Chromium (VI) Ions from Aqueous Solution by Using Odina Wodier Bark Carbon. Asian J. Research Chem. 4(11): Nov., 2011; Page 1701-1708.

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DOI: 10.5958/0974-4150 

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