Work

Influence of surface modification with ceria on transport properties of heterogeneous anion exchange MА-41 membranes

Year: 2024

Type: article

Abstract: Heterogeneous anion-exchange MA-41 membranes were surface modified with cerium oxide, incl. that with a surface functionalized with phosphoric acid groups. Composite membranes were characterized by SEM, TGA, IR spectroscopy, and voltammetry; their conductivity in various ionic forms, anion transfer numbers, and selectivity coefficients for the separation of singly and doubly charged anions during electrodialysis desalination were determined. The modifying layer of cerium oxide practically does not change conductivity of the composite membranes, but increases their monovalent selectivity. E.g., the P(Cl /SO42–) selectivity of the modified MA-41 membrane increases from 0.82 to 1.01, and the P(NO3 /SO42–) selectivity – from 1.38 to 1.60.

Source: Мембраны и Мембранные технологии

DOI: 10.31857/s2218117224020017

Authors: P. A. Yurova, I. A. Stenina, A. D. Manin, D. V. Golubenko, A. B. Yaroslavtsev

Institutions: Institute of General and Inorganic Chemistry, NS Kurnakova Institute of General and Inorganic Chemistry

Language: English

Topic: Membrane-based Ion Separation Techniques

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4402863882

FWCI:

Cites: 35

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Related to: 10