Adsorption of a gold-iodide complex (AuI2) onto cellulose acetate-polyaniline membranes: Equilibrium experiments



The adsorption of AuImath image complex onto acetate cellulose-polyaniline membranes was investigated. Kinetic experiments showed a rapid adsorption of this complex, which was attributed to an ion-exchange mechanism. Equilibrium adsorption results were represented by the Langmuir model, showing a correlation coefficient of 0.9852. Langmuir parameters K and Qm were found to be 0.2937 L mg−1 and 1.2394 mg g−1, respectively. Approximately 94% of AuImath image was adsorbed when a solid/liquid ratio of 40 g L−1 (grams of membrane/ liter of solution) was used. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009