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Kinetics and thermodynamic of Fe(III) adsorption type onto activated carbon frombiomass: kinetics and thermodynamics studies

M.A.Mahmoud, E.A.Gawad, E.A.Hamoda, E.A.Haggag

Batch adsorption of Fe (Ø) from aqueous solution onto activated carbon prepared by chemical activation process from date palm seeds (ADPSC) was studied. The maximum adsorption capacity (98.56%) was obtained at pH 5 and contact time 80 minutes. The adsorption data indicates that the process follows the pseudo-second-order kinetic model. As well as the thermodynamic data indicate that adsorption processes is endothermic. The values of enthalpy (ÄH°) and activation energy (Ea) indicate that the adsorption process is chemisorption.