Characterization and applications of ion-exchange membranes and selective ion transport through them: a review

Ahmad, Muhammad; Ahmed, Mahmood

doi:10.1007/s10800-023-01882-3

Cited by 6 publications

(1 citation statement)

References 222 publications

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“…The anion transport numbers (

) were determined using Luggin capillaries by measuring the membrane potentials (

) for the membranes placed between 0.5 and 0.1 M NaCl solutions; the experiments were conducted at room temperature. The membrane potential arises during electrolyte diffusion across the membrane due to the concentration gradient and is mainly determined by the transport numbers of ions in the membrane [ 54 ].…”

Section: Methodsmentioning

confidence: 99%

Composite Anion Exchange Membranes Based on Quaternary Ammonium-Functionalized Polystyrene and Cerium(IV) Phosphate with Improved Monovalent-Ion Selectivity and Antifouling Properties

et al. 2023

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The possibility of targeted change of the properties of ion exchange membranes by incorporation of various nanoparticles into the membranes is attracting the attention of many research groups. Here we studied for the first time the influence of cerium phosphate nanoparticles on the physicochemical and transport properties of commercial anion exchange membranes based on quaternary ammonium-functionalized polystyrenes, such as heterogeneous Ralex® AM and pseudo-homogeneous Neosepta® AMX. The incorporation of cerium phosphate on one side of the membrane was performed by precipitation from absorbed cerium ammonium nitrate (CAN) anionic complex with ammonium dihydrogen phosphate or phosphoric acid. The structures of the obtained hybrid membranes and separately synthesized cerium phosphate were investigated using FTIR, P31 MAS NMR, EDX mapping, and scanning electron microscopy. The modification increased the membrane selectivity to monovalent ions in the ED desalination of an equimolar mixture of NaCl and Na2SO4. The highest selectivities of Ralex® AM and Neosepta® AMX-based hybrid membranes were 4.9 and 7.7, respectively. In addition, the modification of Neosepta® membranes also increased the resistance to a typical anionic surfactant, sodium dodecylbenzenesulfonate.

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“…The anion transport numbers (

) were determined using Luggin capillaries by measuring the membrane potentials (

Section: Methodsmentioning

confidence: 99%

Composite Anion Exchange Membranes Based on Quaternary Ammonium-Functionalized Polystyrene and Cerium(IV) Phosphate with Improved Monovalent-Ion Selectivity and Antifouling Properties

et al. 2023

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Electrodialysis as a key operating unit in chemical processes: From lab to pilot scale of latest breakthroughs

Hopsort,

Cacciuttolo,

Pasquier

2024

Chemical Engineering Journal

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Recent progress in green thin film membrane based materials for desalination: Design, properties and applications

Raza,

Hayat,

Bashir

et al. 2024

Desalination

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Characterization and applications of ion-exchange membranes and selective ion transport through them: a review

Cited by 6 publications

References 222 publications

Composite Anion Exchange Membranes Based on Quaternary Ammonium-Functionalized Polystyrene and Cerium(IV) Phosphate with Improved Monovalent-Ion Selectivity and Antifouling Properties

Composite Anion Exchange Membranes Based on Quaternary Ammonium-Functionalized Polystyrene and Cerium(IV) Phosphate with Improved Monovalent-Ion Selectivity and Antifouling Properties

Electrodialysis as a key operating unit in chemical processes: From lab to pilot scale of latest breakthroughs

Recent progress in green thin film membrane based materials for desalination: Design, properties and applications

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