Adsorption of basic dyes from aqueous solution onto pumice powder

The adsorption of methylene blue and crystal violet on pumice powder samples of varying compositions was investigated using a batch adsorption technique. The effects of various experimental parameters, such as adsorbent dosage, initial dye concentration, and contact time, were also investigated. The...

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Bibliographic Details
Published in:Journal of colloid and interface science 2005-06, Vol.286 (2), p.455-458
Main Author: Akbal, Feryal
Format: Article
Language:English
Subjects:
Adsorption
Adsorption isotherm
Chemistry
Color removal
Exact sciences and technology
General and physical chemistry
Pumice powder
Solid-liquid interface
Surface physical chemistry
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Description
Summary:The adsorption of methylene blue and crystal violet on pumice powder samples of varying compositions was investigated using a batch adsorption technique. The effects of various experimental parameters, such as adsorbent dosage, initial dye concentration, and contact time, were also investigated. The extent of dye removal increased with decreased initial concentration of the dye and also increased with increased contact time and amount of adsorbent used. Adsorption data were modeled using the Freundlich adsorption isotherm. The adsorption kinetic of methylene blue and crystal violet could be described by the pseudo-second-order reaction model.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2005.01.036