Kinetic analysis of the sorption of copper(II) ions on chitosan

W. H. Cheung; J. C.Y. Ng; G. McKay

doi:10.1002/jctb.836

Kinetic analysis of the sorption of copper(II) ions on chitosan

W. H. Cheung, J. C.Y. Ng, G. McKay^*

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

97 Citations (Scopus)

Abstract

The removal of copper ions from aqueous effluents by chitosan was studied in equilibrium and agitated batch contacting systems. The sorption capacities of chitosan for copper ions are 1.26 and 1.12mmolg^-1 at pH 3.5 and 4.5, respectively. The equilibrium experimental data were best correlated by the Langmuir equation. The kinetics of sorption were studied at an initial solution pH of 4.5 and a chitosan particle size of 355-500 μm. The kinetics were analyzed using four models: the pseudo-first-order, pseudo-second-order, modified second-order and Elovich equations. The rate parameters for the four models were determined and the Elovich equation provided the best correlation of the experimental kinetic data.

Original language	English
Pages (from-to)	562-571
Number of pages	10
Journal	Journal of Chemical Technology and Biotechnology
Volume	78
Issue number	5
DOIs	https://doi.org/10.1002/jctb.836
Publication status	Published - 1 May 2003
Externally published	Yes

Keywords

Adsorption
Chitosan
Copper
Kinetics

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10.1002/jctb.836

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abstract = "The removal of copper ions from aqueous effluents by chitosan was studied in equilibrium and agitated batch contacting systems. The sorption capacities of chitosan for copper ions are 1.26 and 1.12mmolg-1 at pH 3.5 and 4.5, respectively. The equilibrium experimental data were best correlated by the Langmuir equation. The kinetics of sorption were studied at an initial solution pH of 4.5 and a chitosan particle size of 355-500 μm. The kinetics were analyzed using four models: the pseudo-first-order, pseudo-second-order, modified second-order and Elovich equations. The rate parameters for the four models were determined and the Elovich equation provided the best correlation of the experimental kinetic data.",

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AU - Cheung, W. H.

AU - Ng, J. C.Y.

AU - McKay, G.

PY - 2003/5/1

Y1 - 2003/5/1

N2 - The removal of copper ions from aqueous effluents by chitosan was studied in equilibrium and agitated batch contacting systems. The sorption capacities of chitosan for copper ions are 1.26 and 1.12mmolg-1 at pH 3.5 and 4.5, respectively. The equilibrium experimental data were best correlated by the Langmuir equation. The kinetics of sorption were studied at an initial solution pH of 4.5 and a chitosan particle size of 355-500 μm. The kinetics were analyzed using four models: the pseudo-first-order, pseudo-second-order, modified second-order and Elovich equations. The rate parameters for the four models were determined and the Elovich equation provided the best correlation of the experimental kinetic data.

AB - The removal of copper ions from aqueous effluents by chitosan was studied in equilibrium and agitated batch contacting systems. The sorption capacities of chitosan for copper ions are 1.26 and 1.12mmolg-1 at pH 3.5 and 4.5, respectively. The equilibrium experimental data were best correlated by the Langmuir equation. The kinetics of sorption were studied at an initial solution pH of 4.5 and a chitosan particle size of 355-500 μm. The kinetics were analyzed using four models: the pseudo-first-order, pseudo-second-order, modified second-order and Elovich equations. The rate parameters for the four models were determined and the Elovich equation provided the best correlation of the experimental kinetic data.

KW - Adsorption

KW - Chitosan

KW - Copper

KW - Kinetics

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DO - 10.1002/jctb.836

M3 - Article

AN - SCOPUS:0038025487

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VL - 78

SP - 562

EP - 571

JO - Journal of Chemical Technology and Biotechnology

JF - Journal of Chemical Technology and Biotechnology

IS - 5

ER -

Kinetic analysis of the sorption of copper(II) ions on chitosan

Abstract

Keywords

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