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In relation to this article, we declare that there is no conflict of interest.
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Received May 12, 2009
Accepted November 8, 2009
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Removal of acid dye (violet 54) and adsorption kinetics model of using musa spp. waste: A low-cost natural sorbent material

Department of Chemical Engineering, A. C. Tech., Anna University, Chennai-600025, India 1Center for Environmental Studies/Green Energy Center, Department of Environmental Science and Engineering, Kyung Hee University, Gyeonggi-do 446-701, Korea
Korean Journal of Chemical Engineering, September 2010, 27(5), 1469-1475(7), 10.1007/s11814-010-0226-3
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Abstract

Experimental studies and biosorption kinetics of an intraparticle diffusion model for acid dye removal using a musa spp. waste sorbent were carried out to find the removal effects and dynamics of various operating parameters, such as initial dye concentration, sorbent dosage, pH and temperature. Experimental data were modeled with kinetic models and two biosorption isotherms of intraparticle diffusion models as well as the physiochemical data of sorbents_x000D_ characterized by SEM and FT-IR. Kinetic studies showed that the sorption process follows second-order rate kinetics with an average rate constant of 0.0018675 (g/mg·min). Thermodynamic parameters such as entropy of biosorption (ΔS°), enthalpy of biosorption (ΔH°) and Gibbs free energy of biosorption (ΔG°) were obtained and analyzed. Sorbent, musa spp. waste (banana peel) was characterized by FTIR and SEM. The results showed that musa spp. waste can be considered as potential sorbent for the sorption of acid violet 54 from dilute aqueous solution.

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