Studies on adsorption of dyes on beta-cyclodextrin polymer

Beta-cyclodextrin (β-CD) polymers are used for the removal of various dyes from aqueous solutions. Three insoluble polymers with different degrees of β-CD were used. Results of adsorption experiments showed that these polymers exhibited high sorption capacities toward dyes. The mechanism of adsorpti...

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Bibliographic Details
Published in:Bioresource technology 2003-11, Vol.90 (2), p.193-198
Main Author: Crini, Grégorio
Format: Article
Language:English
Subjects:
Adsorption
beta-Cyclodextrins
Biological and medical sciences
Coloring Agents - pharmacokinetics
Cyclodextrin
Cyclodextrins - chemistry
Dyes
Fundamental and applied biological sciences. Psychology
Hydrogen Bonding
Hydrogen-Ion Concentration
Industrial Waste
Particle Size
Polymers
Polymers - chemistry
Sodium Chloride - chemistry
Sorbents
Water Purification - methods
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Summary:Beta-cyclodextrin (β-CD) polymers are used for the removal of various dyes from aqueous solutions. Three insoluble polymers with different degrees of β-CD were used. Results of adsorption experiments showed that these polymers exhibited high sorption capacities toward dyes. The mechanism of adsorption was both physical adsorption and hydrogen bonding due to the polymer and the formation of an inclusion complex due to the β-CD molecules through host–guest interactions.
ISSN:0960-8524
1873-2976
DOI:10.1016/S0960-8524(03)00111-1