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Ionic Liquids-Polymer of Intrinsic Microporosity (PIMs) Blend Membranes for CO2 Separation.
| Content Provider | Europe PMC |
|---|---|
| Author | Ferraro, Giuseppe Astorino, Carmela Bartoli, Mattia Martis, Alberto Lettieri, Stefania Pirri, Candido Fabrizio Bocchini, Sergio |
| Editor | Lau, Woei Jye Liang, Yong Yeow |
| Copyright Year | 2022 |
| Abstract | Membranes with high CO2 solubility are essential for developing a separation technology with low carbon footprint. To this end, physical blend membranes of [BMIM][Ac] and [BMIM][Succ] as Ionic Liquids (ILs) and PIM-1 as the polymer were prepared trying to combine the high permeability properties of PIM-1 with the high CO2 solubility of the chosen ILs. Membranes with a PIM-1/[BMIM][Ac] 4/1 ratio nearly double their CO2 solubility at 0.8 bar (0.86 cm3 (STP)/cm3 cmHg), while other ratios still maintain similar solubilities to PIM-1 (0.47 cm3 (STP)/cm3 cmHg). Moreover, CO2 permeability of PIM-1/[BMIM][Ac] blended membranes were between 1050 and 2090 Barrer for 2/1 and 10/1 ratio, lower than PIM-1 membrane, but still highly permeable. The here presented self-standing and mechanically resistant blend membranes have yet a lower permeability compared to PIM-1 yet an improved CO2 solubility, which eventually will translate in higher CO2/N2 selectivity. These promising preliminary results will allow us to select and optimize the best performing PIM-1/ILs blends to develop outstanding membranes for an improved gas separation technology. |
| Volume Number | 12 |
| PubMed Central reference number | PMC9786291 |
| Issue Number | 12 |
| PubMed reference number | 36557169 |
| Journal | Membranes (Basel) |
| e-ISSN | 20770375 |
| DOI | 10.3390/membranes12121262 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-12-13 |
| Access Restriction | Open |
| Rights License | 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/). © 2022 by the authors. |
| Subject Keyword | ionic liquids polymers of intrinsic microporosity CO2 gas separation supported ionic liquids membranes carbon capture and storage gas solubility flow cell |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemical Engineering Process Chemistry and Technology Filtration and Separation |
