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Adsorption of Basic Yellow 28 from aqueous solutions with clinoptilolite and amberlite
Date
2006-02-15
Author
Yener, J
Kopac, T
Dogu, G
Doğu, Timur
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The objective of this study was to investigate the adsorption of Basic Yellow 28 that is a cationic dye on clinoptilolite and amberlite XAD-4. Both equilibrium and batch rate adsorption in aqueous solutions of the dyestuff were investigated. Adsorption rate data were analysed using the pseudo-first order kinetic model of Lagergren and the pseudo-second order model to determine adsorption rate constants at 20, 30 and 40 degrees C. The adsorption equilibrium data were analysed using various adsorption isotherm models and the results have shown that adsorption behaviour of Basic Yellow 28 by clinoptilolite and amberlite could be described by either Langmuir or Freundlich models. Langmuir adsorption isotherm constants corresponding to adsorption capacity, Q(0), were found to be 59.6, 52.9 and 56.7 mg/g for clinoptilolite at 20, 30 and 40 degrees C, respectively. Lower adsorption capacities for Basic Yellow 28 on amberlite were obtained. The increase of adsorption rate constants with an increase in temperature for BY 28 adsorption on amberlite indicated chemisorption with dissociation and increased availability of sites due to higher penetration of adsorbing molecules into the pores. (c) 2005 Elsevier Inc. All rights reserved.
Subject Keywords
Colloid and Surface Chemistry
,
Electronic, Optical and Magnetic Materials
,
Surfaces, Coatings and Films
,
Biomaterials
URI
https://hdl.handle.net/11511/62880
Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
DOI
https://doi.org/10.1016/j.jcis.2005.07.040
Collections
Graduate School of Natural and Applied Sciences, Article
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BibTeX
J. Yener, T. Kopac, G. Dogu, and T. Doğu, “Adsorption of Basic Yellow 28 from aqueous solutions with clinoptilolite and amberlite,”
JOURNAL OF COLLOID AND INTERFACE SCIENCE
, vol. 294, no. 2, pp. 255–264, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62880.