Journal of Membrane Science, volume 612, pages 118408

Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes

Publication typeJournal Article
Publication date2020-10-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN03767388
Biochemistry
Physical and Theoretical Chemistry
General Materials Science
Filtration and Separation
Abstract
This communication describes the development of anion-exchange membrane (AEM) with a modified surface possessing monovalent ion selectivity and antifouling properties. Modified AEMs series was obtained by the formation of an oppositely-charged thin layer utilizing the surface sulfonation of the grafted AEMs. The creation of the interface layer leads to a significant increase in the Cl/SO4 selectivity and the appearance of humic acid sorption resistance. The best surface-sulfonated anion-exchange membrane (s-AEM) has a high ionic conductivity of 11.2 mS cm−1 and high Cl/SO4 selectivity up to 6.4 in electrodialysis. The sulfonated layer was characterized by IR spectroscopy and electron microscopy. The relationship between the structure and thickness of the cation-exchange surface layer and the observed changes in membrane transport properties such as diffusion permeability, ionic conductivity, potentiometric transport numbers, and current-voltage characteristics are discussed. It was shown that the Cl/SO4 selectivity of s-AEM in the desalination process depends on the current density. The obtained data were successfully interpreted using a mathematical model based on the concept of the bipolar structure of the s-AEM surface layer and diffusion control of anion transport through it.

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Golubenko D. et al. Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes // Journal of Membrane Science. 2020. Vol. 612. p. 118408.
GOST all authors (up to 50) Copy
Golubenko D., Yaroslavtsev A. B. Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes // Journal of Membrane Science. 2020. Vol. 612. p. 118408.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.memsci.2020.118408
UR - https://doi.org/10.1016%2Fj.memsci.2020.118408
TI - Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes
T2 - Journal of Membrane Science
AU - Golubenko, Daniil
AU - Yaroslavtsev, A. B.
PY - 2020
DA - 2020/10/01 00:00:00
PB - Elsevier
SP - 118408
VL - 612
SN - 0376-7388
ER -
BibTex
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BibTex Copy
@article{2020_Golubenko,
author = {Daniil Golubenko and A. B. Yaroslavtsev},
title = {Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes},
journal = {Journal of Membrane Science},
year = {2020},
volume = {612},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016%2Fj.memsci.2020.118408},
pages = {118408},
doi = {10.1016/j.memsci.2020.118408}
}
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