Kinetics and Thermodynamic Investigation of Phosphate Adsorption on AlCl3 Modified Palygorskite

Yan Zhang; Xian Jun Lv; Xiao Yan Kou

doi:10.4028/www.scientific.net/AMR.683.530

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 683Kinetics and Thermodynamic Investigation of...

Kinetics and Thermodynamic Investigation of Phosphate Adsorption on AlCl₃ Modified Palygorskite

Abstract:

The potential of AlCl₃ modified palygorskite was assessed for adsorption of phosphate from aqueous solutions. The Langmuir isotherm adequately described adsorption with an R2 goodness of fit of 0.9683. The process kinetics was found to follow the pseudo-second-order model. Positive △H and △S values indicated that the adsorption of phosphate onto AlCl₃ modified palygorskite was endothermic. Negative △G showed that the adsorption of phosphate onto this sorbent is feasible and spontaneous.

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Advanced Materials Research (Volume 683)

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530-533

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https://doi.org/10.4028/www.scientific.net/AMR.683.530

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April 2013

Authors:

Yan Zhang, Xian Jun Lv, Xiao Yan Kou

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Adsorption, AlCl₃ Modified Palygorskite, Kinetic, Phosphate, Thermodynamic

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