2026-04-14T16:25:17Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/687202025-01-31T08:53:48Zcom_10324_1157com_10324_931com_10324_894col_10324_1298
Pérez García, Miguel Ángel
Gallego, Silvia
Palacio Martínez, Laura
Hernández Giménez, Antonio
Prádanos del Pico, Pedro Lourdes
Carmona Del Rio, Francisco Javier
2024-07-12T08:36:20Z
2024-07-12T08:36:20Z
2023
Membranes, 2023, Vol. 13, Nº. 6, 608
2077-0375
https://uvadoc.uva.es/handle/10324/68720
10.3390/membranes13060608
608
6
Membranes
13
2077-0375
Producción Científica
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.
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)
application/pdf
eng
MDPI
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
© 2023 The authors
Atribución 4.0 Internacional
Atribución 4.0 Internacional
Nanofiltration
Filtros y filtración
Permeability
Zeta potential
Impedance spectroscopy
Espectroscopia de impedancia
Spectroscopy
Membranes (Technology)
Membranas (Tecnología)
Membrane separation
Separación (Tecnología)
Chemical engineering
3328.10 Filtración
2209.21 Espectroscopia
2210.19 Fenómenos de Membrana
3303 Ingeniería y Tecnología Químicas
Saline retention and permeability of nanofiltration membranes versus resistance and capacitance as obtained from impedance spectroscopy under a concentration gradient
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
https://www.mdpi.com/2077-0375/13/6/608
SI