Journal
APPLIED CLAY SCIENCE
Volume 50, Issue 3, Pages 427-431Publisher
ELSEVIER
DOI: 10.1016/j.clay.2010.08.018
Keywords
Adsorption; Montmorillonite; Acid dye; Waste water; Kinetics; Isotherms
Funding
- National NSF of China [20773110, 20541002]
- Zhejiang Provincial Natural Science Foundation of China [R4100436, Y405064]
- Science and Technology Department of Zhejiang Provincial Government for the related research and development [2009C14G2020021]
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The adsorption of Acid Red G(ARG C18H13N3Na2O8S2) onto octadecyl trimethylammonium montmorillonite was investigated in aqueous solution The amount of adsorption of ARC onto octadecyl trimethylammonium montmorillonite decreased with increasing pH The isotherms were fitted by the Langmuir model The pseudo-second-order kinetics model represented the experimental data better than the pseudo-first-order model The activation energy Gibbs free energy enthalpy and entropy of adsorption were also evaluated (C) 2010 Elsevier B V All rights reserved
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