P. A. Yurova, I. A. Stenina, A. D. Manin, D. V. Golubenko, A. B. Yaroslavtsev
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引用次数: 0
Abstract
Surface modification of heterogeneous MA-41 anion-exchange membranes with cerium oxide particles, including those with a surface functionalized with phosphoric acid groups, was carried out. The resulting composite membranes were characterized by SEM, TGA, IR spectroscopy, and voltammetry. For membranes in various ionic forms, their conductivity, the number of anion transfers, as well as the selective permeability coefficients of singly and doubly charged anions in the process of electrodialysis desalting were determined. The modifying layer of cerium oxide practically does not change the conductivity of the membranes, but increases their selectivity to singly charged anions. Thus, the value of the selective permeability coefficient \(P({\text{C}}{{{\text{l}}}^{ - }}{\text{/SO}}_{4}^{{2 - }})\) of the modified MA-41 membrane increases from 0.82 to 1.01, and \(P({\text{NO}}_{3}^{ - }{\text{/SO}}_{4}^{{2 - }})\) increases from 1.38 to 1.60.
期刊介绍：
The journal Membranes and Membrane Technologies publishes original research articles and reviews devoted to scientific research and technological advancements in the field of membranes and membrane technologies, including the following main topics:novel membrane materials and creation of highly efficient polymeric and inorganic membranes;hybrid membranes, nanocomposites, and nanostructured membranes;aqueous and nonaqueous filtration processes (micro-, ultra-, and nanofiltration; reverse osmosis);gas separation;electromembrane processes and fuel cells;membrane pervaporation and membrane distillation;membrane catalysis and membrane reactors;water desalination and wastewater treatment;hybrid membrane processes;membrane sensors;membrane extraction and membrane emulsification;mathematical simulation of porous structures and membrane separation processes;membrane characterization;membrane technologies in industry (energy, mineral extraction, pharmaceutics and medicine, chemistry and petroleum chemistry, food industry, and others);membranes and protection of environment (“green chemistry”).The journal has been published in Russian already for several years, English translations of the content used to be integrated in the journal Petroleum Chemistry. This journal is a split off with additional topics.
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