Engineering a molecular-sieving architecture on poly(ionic liquid)-functionalized UiO-66-NH2 membranes toward CO2/N2 separation

Liangmei Luo; Yingjie Chang; Yutong Liao; Yanqing Wang; Qi Li

doi:10.1039/D5CC01534K

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Engineering a molecular-sieving architecture on poly(ionic liquid)-functionalized UiO-66-NH₂ membranes toward CO₂/N₂ separation†

Liangmei Luo,

^a Yingjie Chang,^a Yutong Liao,^a Yanqing Wang

*^a and Qi Li

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
E-mail: zhuiqiuzhizhuo@163.com, ccewyq@ntu.edu.cn

Abstract

A PIL-functionalized PET supported UiO-66-NH₂ membrane (PET/UiO-66-NH₂@PIL) was synthesized through photoinduced crosslinking of 1-vinyl-3-butylimidazolium tetrafluoroborate ([VBIM][BF₄]), establishing a coordination-induced hierarchical architecture. This engineered membrane synergistically combines the CO₂-philic sites of PIL molecular-sieving domains with the size-exclusion effect of UiO-66-NH₂ nanocages, achieving exceptional CO₂ permeance of 162 GPU and CO₂/N₂ selectivity up to 68.3.

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Article information

DOI: https://doi.org/10.1039/D5CC01534K
Article type: Communication
Submitted: 18 Mar 2025
Accepted: 12 May 2025
First published: 15 May 2025

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Chem. Commun., 2025, Advance Article

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Engineering a molecular-sieving architecture on poly(ionic liquid)-functionalized UiO-66-NH₂ membranes toward CO₂/N₂ separation

L. Luo, Y. Chang, Y. Liao, Y. Wang and Q. Li, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC01534K

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