Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions

FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (1): 63-67.

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Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions

XU Hui, SUN Lan-Ping, ZHANG Sheng-Yi, ZHAO Da-Qing

1.Department of Food and Bioengineering, Bengbu College, Bengbu 233030, China; 2.College of Chemistry and Chemicial Engineering, Anhui University, Hefei 230039, China

Online:2007-01-15 Published:2011-12-31

Abstract

Abstract: In this paper the structure of the chitosan-ferric(CTS-Fe³⁺）complex prepared by non-homogeneous adsorption was confirmed by IR and UVspectra, and the isothermal adsorption kinetics of CTS for ferric ions has also been investigated. The experiments indicated that the chelate reaction occurrs between -NH₂, -OH, -NHCOCH₃ of CTS and ferric ions, the adsorption is satisfied with the Langmuir-single-molecule-layer adsorption mechanism, and the apparent adsorption activation energy is 3.6476kJ/mol.

Key words: chitosan, ferricion, chelate, adsorption kinetics

XU Hui, SUN Lan-Ping, ZHANG Sheng-Yi, ZHAO Da-Qing. Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions[J]. FOOD SCIENCE, 2007, 28(1): 63-67.

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Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions

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