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- W2040774736 abstract "Abstract Microwave technique has been adopted for preparation of two activated carbons from agricultural wastes, Albizia lebbeck seed pods, by KOH and K 2 CO 3 activation. Adsorption mechanisms of a first generation cephalosporin antibiotic, cephalexin (CFX), onto both carbons namely KAC and KCAC have been compared. The yield and surface area of KAC were 22.48% and 1824.88 m 2 /g compared to 26.19% and 1676.61 m 2 /g for KCAC. The analysis of pore structures of prepared carbons showed that KOH activation exhibited higher mesopores content than K 2 CO 3 activating. The experimental isotherm data for adsorption of CFX onto both carbons were analyzed by Langmuir, Freundlich and Temkin isotherms. Langmuir isotherm was the best model giving maximum adsorption capacities of 137.02 and 118.08 mg/g on KAC and KCAC, respectively. The kinetic data were well represented by the pseudo-second order model for adsorption onto both carbons. Thermodynamics analysis showed an endothermic CFX adsorption on KAC compared to an exothermic adsorption on KCAC under examined conditions." @default.
- W2040774736 created "2016-06-24" @default.
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- W2040774736 date "2012-11-01" @default.
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- W2040774736 title "Adsorption of cephalexin onto activated carbons from Albizia lebbeck seed pods by microwave-induced KOH and K2CO3 activations" @default.
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- W2040774736 doi "https://doi.org/10.1016/j.cej.2012.09.089" @default.
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