Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25027
Title: Pseudo-first-order kinetic studies of the sorption of acid dyes onto chitosan
Authors: Wong, YC
Szeto, YS 
Cheung, WH
McKay, G
Keywords: Adsorption
Biopolymers
Dyes
Kinetics (polym.)
Pigments
Issue Date: 2004
Publisher: John Wiley & Sons
Source: Journal of applied polymer science, 2004, v. 92, no. 3, p. 1633-1645 How to cite?
Journal: Journal of applied polymer science 
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.
URI: http://hdl.handle.net/10397/25027
ISSN: 0021-8995
EISSN: 1097-4628
DOI: 10.1002/app.13714
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