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Updated: Jul 7, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
Published on: July 20, 2021
High-impact polystyrene/polyaniline membranes for acid solution treatment by electrodialysis: preparation,
F D R Amado1, M A S Rodrigues, F D P Morisso
1Universidade Federal do Rio Grande do Sul, DEMAT, Av. Bento Gonçalves, 9500, setor 4, prédio 74, Cep. 91501-970, Porto Alegre, RS, Brazil. franco.amado@ufrgs.br
Abstract:
In this study different membranes were produced, aiming to evaluate their use in electrodialysis. These membranes were produced using conventional polymer (high-impact polystyrene) and polyaniline. The membrane characterization was done by FTIR spectroscopy, scanning electron microscopy (SEM), and thermogravimetry (TGA). The studies of the zinc and proton extraction ionic transport through the membranes were evaluated using a three-compartment cell. The results obtained using the produced membranes were compared to the results obtained with the commercial membrane Nafion 450. It was found that a synthesized membrane can be used to recover zinc in acid media. In addition, a preliminary computational essay about the structures of PAni and CSA is presented.
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