Adsorption Kinetics and Thermodynamics Study for the Removal of Anionic Dye Eosin-B From Aqueous Solution by Anion Exchange Membrane: Adsorption Kinetics and Thermodynamics
Journal Title: Scholars Journal of Engineering and Technology - Year 2015, Vol 3, Issue 9
Abstract
Abstract: Batch adsorption of anionic dye Eosin-B (EB) from aqueous solution on anion exchange membrane (EBTAC) has been studied at ambient temperature. The influence of contact time, membrane dosage, ionic strength and temperature on the adsorption of dye from aqueous solution were investigated. Kinetic models such as pseudo-first-order, pseudo-second-order, Elovich model, liquid film diffusion model, modified Freundlich equation and Bangham equation were used to evaluate the experimental data.Endowments such as adsorption capacities, rate constant and related correlation coefficients for every model were measured and discussed.Thermodynamic characteristics illustrated that adsorptionof EB on EBTAC followed pseudo-second-order kinetics.Moreover, change in Gibbs free energy (∆G°), EB on EBTAC revealed that the adsorption of EB dye on EBTAC is an exothermic process. Keywords: Adsorption, Eosin-B, Anion exchange membrane, Kinetics,Thermodynamics, Exothermic process.
Authors and Affiliations
Muhammad Imran Khan, Muhammad Ali Khan, Shagufta Zafar, SaminaAhmad Hussain
Keywords
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