In-situ formation of asymmetric thin-film, mixed-matrix membranes with ZIF-8 in dual-functional imidazole-based comb copolymer for high-performance CO2 capture
DC Field | Value | Language |
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dc.contributor.author | Lee, Chang Soo | - |
dc.contributor.author | Kang, Miso | - |
dc.contributor.author | Kim, Ki Chul | - |
dc.contributor.author | Kim, Jong Hak | - |
dc.date.accessioned | 2022-05-10T02:40:08Z | - |
dc.date.available | 2022-05-10T02:40:08Z | - |
dc.date.created | 2022-03-28 | - |
dc.date.issued | 2022-02 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/21040 | - |
dc.description.abstract | Despite numerous studies on free-standing, mixed-matrix membranes (MMMs), the development of thin-film MMMs with high permeance is still an ongoing challenge. Here, the successful fabrication of ultra-highpermeance thin-film MMMs on a porous polymer substrate is described based on a highly porous zeolitic imidazole framework (ZIF-8) and a dual-functional imidazole-based comb copolymer. The copolymer of poly (vinyl imidazole)-poly(oxyethylene methacrylate) (PVI-POEM) is synthesized via free-radical polymerization, and it exhibits CO2-philicity, strong adhesion, and good interactions with fillers. In contrast to commercial benchmark membranes such as Pebax, the use of the PVI-POEM comb copolymer results in significant improvement in the CO2 permeance without significant loss of selectivity even at high ZIF-8 loadings and low thickness. It is attributed to the in-situ formation of inverse, asymmetric morphology of MMMs and partial infiltration of PVI-POEM chains into ZIF-8 particles. Optimization of the preparation process, such as ZIF-8 loading, substrate type, and coating layer thickness, leads to an extremely high CO2 permeance of 4474 GPU with high CO2/N-2 and CO2/CH4 ideal selectivities of 32.0 and 12.4, respectively, which is far beyond the current trade-off limit for membranes. The mechanism behind the exceptionally high CO2 separation performance is delineated by exploring molecular dynamic simulation through morphology, structural, and energetic analyses. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | In-situ formation of asymmetric thin-film, mixed-matrix membranes with ZIF-8 in dual-functional imidazole-based comb copolymer for high-performance CO2 capture | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Chang Soo | - |
dc.identifier.doi | 10.1016/j.memsci.2021.119913 | - |
dc.identifier.wosid | 000710667100003 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MEMBRANE SCIENCE, v.642 | - |
dc.relation.isPartOf | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.title | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.volume | 642 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | COMPOSITE MEMBRANE | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | PERMEABILITY | - |
dc.subject.keywordAuthor | Carbon dioxide | - |
dc.subject.keywordAuthor | Comb copolymer | - |
dc.subject.keywordAuthor | Molecular dynamic simulation | - |
dc.subject.keywordAuthor | Mixed-matrix membranes | - |
dc.subject.keywordAuthor | Thin film | - |
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