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Functionalized ionic liquid membranes for CO₂ separation
- GaoHongshuai Gao and Lu Bai contributed equally to this work and should be considered cofirst authors., Hongshuai, Bai, Lu, Han, Jiuli, Yang, Bingbing, Zhang, Suojiang, Zhang, Xiangping
- Chemical communications 2018 v.54 no.90 pp. 12671-12685
- carbon dioxide, chemical reactions, flue gas, ionic liquids, liquid membranes, natural gas, synthesis gas
- It is imperative to develop efficient, reversible and economic technologies for separating CO₂ which mainly comes from flue gas, natural gas and syngas. Membranes based on functionalized ionic liquids (ILs) have attracted much attention from researchers in recent years, and have been considered as a very promising technology. This feature article focuses on the research progress in CO₂ separation using functionalized IL membranes. The recent advances in the preparation, separation performance, and separation mechanism of supported IL membranes (SILMs), pure poly(ionic liquid) (PIL) membranes, PIL–copolymer membranes, PIL–IL composite membranes and polymer–IL composite membranes for CO₂ separation have been reviewed. In addition, the future directions and prospects for CO₂ separation using functionalized IL membranes are given.