Isotermas de Adsorção de Diferentes Corantes Têxteis sobre Quitosana
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Chaves, J.A.P. and Souza, A.G. and Bezerra, C.W.B. and Silva, H.A.S. and Santana, S.A.A. and Pires Vieira, A. and Schultz, M.S. 2008. Isotermas de Adsorção de Diferentes Corantes Têxteis sobre Quitosana. Quimica no Brasil. 2 (1): pp. 37-40.
Quimica no Brasil
Faculty of Science and Engineering
School of Electrical Engineering, Computing and Mathematical Sciences (EECMS)
Adsorption isotherm of some textile dyes onto chitosan. The biopolymer chitosan was employed as adsorbent material to remove some textile dyes (blue R 160% Rcmazol, ru.bine S-2G Dianix, turquoise G 133% Remazol, red RB gran 133% Remazol and brilliant violet 5R Remawl) from aqueous solutions at pH 6.0. The obtained isothenns pointed out the following adsorption capacity sequence: (mg.g-I ): blue (952.4) > violet (699.3) > red (418.4) > rubine (294.1) > turquoise (245.1). The experimental data for all textile dyes studied showed that the equilibrium isotherms correlated very well with the Langmuir isotherm equation.