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

F. Rodríguez, M.M. Castillo-Ortega, J.C. Encinas, V.M. Sánchez-Corrales, M. Pérez-Tello, G.T. Munive

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Abstract

The adsorption of AuI2- 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 AuI2- was adsorbed when a solid/liquid ratio of 40 g L-1 (grams of membrane/ liter of solution) was used.

Original languageUndefined/Unknown
Pages (from-to)2670-2674
Number of pages5
JournalJournal of Applied Polymer Science
Volume113
Issue number4
DOIs
StatePublished - 2009

Keywords

  • Conducting polymers
  • Ion exchangers
  • Membranes
  • Separation techniques

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