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5364433 
Journal Article 
Adsorption of Acid Red G dye on octadecyl trimethylammonium montmorillonite 
Tong, DS; Zhou, C; Lu, Yan; Yu, H; Zhang, G; Yu, W 
2010 
Yes 
Applied Clay Science
ISSN: 0169-1317 
Elsevier 
50 
3 
427-431 
WOS:000284974900023 
The adsorption of Acid Red G(ARG, C sub(18)H sub(13)N sub(3)Na sub(2)O sub(8)S sub(2)) onto octadecyl trimethylammonium montmorillonite was investigated in aqueous solution. The amount of adsorption of ARG 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. 
Adsorption; Montmorillonite; Acid dye; Waste water; Kinetics; Isotherms