Adsorption of sorbic acid from aqueous solution by macroporous adsorption resin: Equilibrium and kinetic characteristics
The purpose of this work was to investigate the potential of the macroporous resin, H-103, in adsorbing sorbic acid. Study on adsorption thermodynamics and kinetics of sorbic acid by H-103 resin was carried out through static experiments. These adsorption processes of sorbic acid were indicative of exothermic process and physical adsorption. The adsorption of sorbic acid on H-103 resin fit well to Freundlich model.Temperature variations were used to evaluate enthalpy △H, entropy △S and Gibbs free energy △G values. The negative valueof △G showed the spontaneous nature of adsorption. In the temperature range from 303-333 K, △H and △S were negative, and the reaction was exothermic and reversible. Adsorption kinetics was found to follow first order reversible model expression.
Adsorption Resin Sorbic acid Thermodynamics Kinetics
Jiangang Wang Jinli Duan
Jiangang Wang,Jinli Duan* School of Environmental and Biological Engineering,Jilin Institute of Chemical Technology,Jilin 132022,P.R.China
国际会议
北京
英文
1-3
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）