Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes

This study aims to enhance the compatibility between filler and polymer in mixed matrix membranes (MMMs), addressing an important challenge in membrane development. ZIF‐94, known for its affinity to CO2, was partially modified with 2‐undecylimidazolate (umIm) through the solvent‐assisted ligand exch...

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Detalhes bibliográficos
Autores: Pérez-Miana, Marta, Luque-Alled, José Miguel, Mayoral, Álvaro, Martínez-Visus, Íñigo, Foster, Andrew B., Budd, Peter M., Coronas, Joaquín
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:160918
Acesso em linha:http://zaguan.unizar.es/record/160918
Access Level:acceso abierto
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spelling Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix MembranesPérez-Miana, MartaLuque-Alled, José MiguelMayoral, ÁlvaroMartínez-Visus, ÍñigoFoster, Andrew B.Budd, Peter M.Coronas, JoaquínThis study aims to enhance the compatibility between filler and polymer in mixed matrix membranes (MMMs), addressing an important challenge in membrane development. ZIF‐94, known for its affinity to CO2, was partially modified with 2‐undecylimidazolate (umIm) through the solvent‐assisted ligand exchange (SALE) method to improve its compatibility with the prototypical polymer of intrinsic microporosity PIM‐1. The modified ZIF‐94 (ZIF‐94‐umIm) can be considered as an amphiphilic MOF with both hydrophilic and hydrophobic moieties, while maintaining a considerably high CO2 adsorption capacity (2.34 mmol g−1 at 90 kPa and 0 °C). Gas separation experiments were performed using mixed gas compositions of 15/85 CO2/N2 at 3 bar and 35 °C. The resulting MMM with a 5 wt.% loading exhibited an enhanced CO2 separation performance, with ca. 70% and 10% increases in CO2 permeability (8900 Barrer) and CO2/N2 selectivity (20.2), respectively, compared to pristine PIM‐1 membranes. In addition, thin film nanocomposite membranes were prepared showing a 23.5 CO2/N2 selectivity at 2350 GPU of CO2. This modification strategy shows a great potential for improving the CO2 capture technologies, highlighting the potential of tailoring MOF fillers for advanced membrane materials in gas separation applications.2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/160918reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/DGA/E13-23Rinfo:eu-repo/grantAgreement/ES/DGA/T68-23Rinfo:eu-repo/grantAgreement/ES/MICINN/PID2022-138582OB-I00info:eu-repo/grantAgreement/ES/MICINN/RYC-2018-024561-Iinfo:eu-repo/grantAgreement/EUR/MICINN/TED2021-130621B-C4info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-Sinfo:eu-repo/grantAgreement/ES/MICIU/CNS2023-144346info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1609182026-05-29T13:59:51Z
dc.title.none.fl_str_mv Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
title Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
spellingShingle Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
Pérez-Miana, Marta
title_short Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
title_full Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
title_fullStr Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
title_full_unstemmed Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
title_sort Amphiphilic Zeolitic Imidazolate Framework for Improved CO2 Separation in PIM-1 Mixed Matrix Membranes
dc.creator.none.fl_str_mv Pérez-Miana, Marta
Luque-Alled, José Miguel
Mayoral, Álvaro
Martínez-Visus, Íñigo
Foster, Andrew B.
Budd, Peter M.
Coronas, Joaquín
author Pérez-Miana, Marta
author_facet Pérez-Miana, Marta
Luque-Alled, José Miguel
Mayoral, Álvaro
Martínez-Visus, Íñigo
Foster, Andrew B.
Budd, Peter M.
Coronas, Joaquín
author_role author
author2 Luque-Alled, José Miguel
Mayoral, Álvaro
Martínez-Visus, Íñigo
Foster, Andrew B.
Budd, Peter M.
Coronas, Joaquín
author2_role author
author
author
author
author
author
description This study aims to enhance the compatibility between filler and polymer in mixed matrix membranes (MMMs), addressing an important challenge in membrane development. ZIF‐94, known for its affinity to CO2, was partially modified with 2‐undecylimidazolate (umIm) through the solvent‐assisted ligand exchange (SALE) method to improve its compatibility with the prototypical polymer of intrinsic microporosity PIM‐1. The modified ZIF‐94 (ZIF‐94‐umIm) can be considered as an amphiphilic MOF with both hydrophilic and hydrophobic moieties, while maintaining a considerably high CO2 adsorption capacity (2.34 mmol g−1 at 90 kPa and 0 °C). Gas separation experiments were performed using mixed gas compositions of 15/85 CO2/N2 at 3 bar and 35 °C. The resulting MMM with a 5 wt.% loading exhibited an enhanced CO2 separation performance, with ca. 70% and 10% increases in CO2 permeability (8900 Barrer) and CO2/N2 selectivity (20.2), respectively, compared to pristine PIM‐1 membranes. In addition, thin film nanocomposite membranes were prepared showing a 23.5 CO2/N2 selectivity at 2350 GPU of CO2. This modification strategy shows a great potential for improving the CO2 capture technologies, highlighting the potential of tailoring MOF fillers for advanced membrane materials in gas separation applications.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/160918
url http://zaguan.unizar.es/record/160918
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/DGA/E13-23R
info:eu-repo/grantAgreement/ES/DGA/T68-23R
info:eu-repo/grantAgreement/ES/MICINN/PID2022-138582OB-I00
info:eu-repo/grantAgreement/ES/MICINN/RYC-2018-024561-I
info:eu-repo/grantAgreement/EUR/MICINN/TED2021-130621B-C4
info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S
info:eu-repo/grantAgreement/ES/MICIU/CNS2023-144346
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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