Journal :   Asian Journal of Research in Chemistry

Volume No. :   7

Issue No. :  4

Year :  2014

Pages :   417-425

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Biosorption of an Acidic Dye, Alizarin Red S, Onto Biosorbent of Mustard husk: Kinetic, Equilibrium Modeling and Spectroscopic Analysis



Address:   Ravindra K. Gautam1, Sushmita Banerjee1, Pavan K. Gautam1, Vandani Rawat1, Ajay Kumar2, Sanjeev K. Singh3, M.C. Chattopadhyaya1*
1Environmental Chemistry Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad 211 002, India
2Rain Forest Research Institute (Indian Council of Forestry Research and Education), Jorhat, Assam, P.O. Box No-136, India
3Eco-System Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur – 440020, India
*Corresponding Author
DOI No:

ABSTRACT:
Adsorption of an anthraquinone dye Alizarin Red S onto biosorbent of mustard husk has been studied on aqueous solutions. The batch adsorption experiments were conducted using simulated aqueous solutions and the effects of initial dye concentration, pH of solution, contact time and temperature were investigated. The prepared biosorbent was characterized using FTIR, SEM, elemental analysis and through the determination of pHzpc. The equilibrium data were modeled with Langmuir and Freundlich isotherms. The rates of adsorption were found to confirm to the pseudo-second-order kinetics with good correlations (R2>0.99). The thermodynamic studies showed that the Alizarin Red S-biosorbent system is spontaneous, exothermic and favourable in nature.
KEYWORDS:
adsorption; Alizarin Red S; Freundlich; Mustard husk; kinetics.
Cite:
Ravindra K. Gautam, Sushmita Banerjee, Pavan K. Gautam, Vandani Rawat, Ajay Kumar, Sanjeev K. Singh, M.C. Chattopadhyaya. Biosorption of an Acidic Dye, Alizarin Red S, Onto Biosorbent of Mustard husk: Kinetic, Equilibrium Modeling and Spectroscopic Analysis. Asian J. Research Chem. 7(4): April 2014; Page 417-425.
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