| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10605586 | Carbohydrate Research | 2011 | 6 Pages |
Abstract
Carboxymethyl-polyaminate chitosan (DETA-CMCHS), a novel kind of amphoteric chitosan derivative, was prepared and characterized by elemental analysis, and by IR and 1H NMR spectroscopy. The adsorption behavior of Reactive Blue (RB2) on DETA-CMCHS was also studied. Results showed that the maximum value of adsorption capacity was 1185.71Â mg/g at pH 3. The adsorption kinetic behavior was fitted with a second-order reaction rate equation. The adsorption was an exothermic, irreversible and entropy-reduced process according to thermodynamic parameters, such as standard Gibbs free-energy change, enthalpy change, and entropy change, all of which were calculated from adsorption equilibrium data.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Yuexia Gu, Peng Song, Tao Li, Weiping Sui,