Pseudo-first-order kinetic studies of the sorption of acid dyes onto chitosan

Y. C. Wong; Y. S. Szeto; W. H. Cheung; G. McKay

doi:10.1002/app.13714

Pseudo-first-order kinetic studies of the sorption of acid dyes onto chitosan

Y. C. Wong, Y. S. Szeto, W. H. Cheung, G. McKay^*

^*Corresponding author for this work

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

160 Citations (Scopus)

Abstract

The adsorption of five acid dyes onto chitosan, derived through the deacetylation of crab-shell chitin, from aqueous solutions was studied. The equilibrium isotherms were measured and analyzed with the Langmuir, Freundlich, and Redlich-Peterson equations; the results correlated well with the Langmuir equation. Kinetic studies were also performed in an agitated batch adsorber to study the effect of the initial dye concentration and the mass of chitosan. The kinetics were analyzed with the pseudo-first-order rate equation, and the rate constants were determined. The first-order kinetic model correlated the experimental concentration and time data at short times and even up to 60% of the total adsorption period in a number of systems.

Original language	English
Pages (from-to)	1633-1645
Number of pages	13
Journal	Journal of Applied Polymer Science
Volume	92
Issue number	3
DOIs	https://doi.org/10.1002/app.13714
Publication status	Published - 5 May 2004
Externally published	Yes

Keywords

Adsorption
Biopolymers
Dyes
Kinetics (polym.)
Pigments

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10.1002/app.13714

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abstract = "The adsorption of five acid dyes onto chitosan, derived through the deacetylation of crab-shell chitin, from aqueous solutions was studied. The equilibrium isotherms were measured and analyzed with the Langmuir, Freundlich, and Redlich-Peterson equations; the results correlated well with the Langmuir equation. Kinetic studies were also performed in an agitated batch adsorber to study the effect of the initial dye concentration and the mass of chitosan. The kinetics were analyzed with the pseudo-first-order rate equation, and the rate constants were determined. The first-order kinetic model correlated the experimental concentration and time data at short times and even up to 60% of the total adsorption period in a number of systems.",

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AU - Szeto, Y. S.

AU - Cheung, W. H.

AU - McKay, G.

PY - 2004/5/5

Y1 - 2004/5/5

N2 - The adsorption of five acid dyes onto chitosan, derived through the deacetylation of crab-shell chitin, from aqueous solutions was studied. The equilibrium isotherms were measured and analyzed with the Langmuir, Freundlich, and Redlich-Peterson equations; the results correlated well with the Langmuir equation. Kinetic studies were also performed in an agitated batch adsorber to study the effect of the initial dye concentration and the mass of chitosan. The kinetics were analyzed with the pseudo-first-order rate equation, and the rate constants were determined. The first-order kinetic model correlated the experimental concentration and time data at short times and even up to 60% of the total adsorption period in a number of systems.

AB - The adsorption of five acid dyes onto chitosan, derived through the deacetylation of crab-shell chitin, from aqueous solutions was studied. The equilibrium isotherms were measured and analyzed with the Langmuir, Freundlich, and Redlich-Peterson equations; the results correlated well with the Langmuir equation. Kinetic studies were also performed in an agitated batch adsorber to study the effect of the initial dye concentration and the mass of chitosan. The kinetics were analyzed with the pseudo-first-order rate equation, and the rate constants were determined. The first-order kinetic model correlated the experimental concentration and time data at short times and even up to 60% of the total adsorption period in a number of systems.

KW - Adsorption

KW - Biopolymers

KW - Dyes

KW - Kinetics (polym.)

KW - Pigments

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JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

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ER -

Pseudo-first-order kinetic studies of the sorption of acid dyes onto chitosan

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Keywords

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