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Título
Saline retention and permeability of nanofiltration membranes versus resistance and capacitance as obtained from impedance spectroscopy under a concentration gradient
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Membranes, 2023, Vol. 13, Nº. 6, 608
Resumen
Impedance spectroscopy has been widely used for the study of the electrical properties of membranes for their characterization. The most common use of this technique is the measure of the conductivity of different electrolyte solutions to study the behavior and movement of electrically charged particles inside the pores of membranes. The objective of this investigation was to observe if there is a relation present between the retention that a nanofiltration membrane possesses to certain electrolytic solutions (NaCl, KCl, MgCl2, CaCl2, and Na2SO4) and the parameters that are obtained through IS measurements of the active layer of the membrane. To achieve our objective, different characterization techniques were performed to obtain the permeability, retention, and zeta potential values of a Desal-HL nanofiltration membrane. Impedance spectroscopy measurements were performed when a gradient concentration was present between both sides of the membrane to study the variation that the electrical parameters had with the time evolution.
Materias (normalizadas)
Nanofiltration
Filtros y filtración
Permeability
Zeta potential
Impedance spectroscopy
Espectroscopia de impedancia
Spectroscopy
Membranes (Technology)
Membranas (Tecnología)
Membrane separation
Separación (Tecnología)
Chemical engineering
Materias Unesco
3328.10 Filtración
2209.21 Espectroscopia
2210.19 Fenómenos de Membrana
3303 Ingeniería y Tecnología Químicas
ISSN
2077-0375
Revisión por pares
SI
Patrocinador
Ministerio de Ciencia, Innovación y Universidades/Agencia Estatal de Investigación (AEI) y Unión Europea NextGenerationEU/PRTR - (grant PID2019-109403RB-C21/AEI/10.13039/501100011033 and TED2021-131170A-I00)
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
Aparece en las colecciones
Ficheros en el ítem
La licencia del ítem se describe como Atribución 4.0 Internacional