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Scholars Journal of Engineering and Technology | Volume-3 | Issue-09
Adsorption Kinetics and Thermodynamics Study for the Removal of Anionic Dye Eosin-B From Aqueous Solution by Anion Exchange Membrane: Adsorption Kinetics and Thermodynamics
Muhammad Imran Khan, Muhammad Ali Khan, Shagufta Zafar, SaminaAhmad Hussain
Published: Sept. 30, 2015 |
137
79
DOI: 10.36347/sjet
Pages: 741-749
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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.