Adsorption of a gold‐iodide complex (AuI2−) onto cellulose acetate‐polyaniline membranes: Equilibrium experiments |
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| Authors: | F. Rodríguez M. M. Castillo‐Ortega J. C. Encinas V. M. Sánchez‐Corrales M. Pérez‐Tello G. T. Munive |
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| Affiliation: | 1. Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, Sonora 83000, México;2. Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora Hermosillo, Sonora 83000, México |
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| Abstract: | The adsorption of AuI 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 AuI 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 |
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| Keywords: | conducting polymers separation techniques membranes ion exchangers |
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