Kinetic Process of Purple Cabbage Pigment on Macro Porous Absorbent Resin

Abstract:

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The adsorption kinetics of purple cabbage pigment (PCP) on LSA-21 macro porous adsorbent resin were studied at different adsorbent resin concentrations (1, 2, 4, 8 g adsorbent resin per liter of purple cabbage extraction solution) for the temperature range of 20~50°C. The results showed that the adsorption of PCP in purple cabbage extraction solution onto LSA-21 macro porous adsorbent resin is highly in agreement with both Langmuir and Freundlich models. Heat of adsorption (ΔH) value of 11.976 kJ/mol indicates the endothermic adsorption process. A decrease of Gibbs free energy (ΔG) with temperature increase also indicates the spontaneous nature of the process.

Info:

Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

1987-1990

DOI:

10.4028/www.scientific.net/AMR.236-238.1987

Citation:

J. H. Yi et al., "Kinetic Process of Purple Cabbage Pigment on Macro Porous Absorbent Resin", Advanced Materials Research, Vols. 236-238, pp. 1987-1990, 2011

Online since:

May 2011

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Price:

$35.00

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