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https://doi.org/10.3390/membranes13090795
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Título: | Polymeric Inclusion Membranes Based on Ionic Liquids for Selective Separation of Metal Ions |
Fecha de publicación: | 2023 |
Editorial: | MDPI |
Cita bibliográfica: | Membranes 2023, 13, 795 |
ISSN: | Electronic: 2077-0375 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::54 - Química |
Palabras clave: | Separation Metal ions Ionic liquids Polymer inclusion membranes Ionogel Stability |
Resumen: | In this work, poly(vinyl chloride)-based polymeric ionic liquid inclusion membranes were used in the selective separation of Fe(III), Zn(II), Cd(II), and Cu(II) from hydrochloride aqueous solutions. The ionic liquids under study were 1-octyl-3-methylimidazolium hexafluorophosphate, [omim+][PF6-] and methyl trioctyl ammonium chloride, [MTOA+][Cl-]. For this purpose, stability studies of different IL/base polymer compositions against aqueous phases were carried out. Among all polymer inclusion membranes studied, [omim+][PF6-]/PVC membranes at a ratio of 30/70 and [MTOA+][Cl-]/PVC membranes at a ratio of 70/30 were able to retain up to 82% and 48% of the weight of the initial ionic liquid, respectively, after being exposed to a solution of metal ions in 1 M HCl for 2048 h (85 days). It was found that polymer inclusion membranes based on the ionic liquid methyl trioctyl ammonium chloride allowed the selective separation of Zn(II)/Cu(II) and Zn(II)/Fe(III) mixtures with separation factors of 1996, 606 and, to a lesser extent but also satisfactorily, Cd(II)/Cu(II) mixtures, with a separation factor of 112. Therefore, selecting the appropriate ionic liquid/base polymer mixture makes it possible to create polymeric inclusion membranes capable of selectively separating target metal ions. |
Autor/es principal/es: | Hernández-Fernández, Adrián Iniesta-López, Eduardo Ginestá-Anzola, Anahí Garrido, Yolanda Pérez de los Ríos, Antonia Quesada-Medina, Joaquín Hernández-Fernández, Francisco José |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Ingeniería Química |
URI: | http://hdl.handle.net/10201/139141 |
DOI: | https://doi.org/10.3390/membranes13090795 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 18 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
Descripción: | Copyright: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/4.0/). |
Aparece en las colecciones: | Artículos: Ingeniería Química |
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Polymeric Inclusion Membranes.pdf | Polymeric Inclusion Membranes | 2,15 MB | Adobe PDF | Visualizar/Abrir |
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