{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T13:27:04Z","timestamp":1791638824775,"version":"4.3.4"},"reference-count":46,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T00:00:00Z","timestamp":1760486400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Major Project of Bingtuan Corps","award":["2023AA006"],"award-info":[{"award-number":["2023AA006"]}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["22168033"],"award-info":[{"award-number":["22168033"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"the Guidance Project of Bingtuan Corps","award":["2023ZD072"],"award-info":[{"award-number":["2023ZD072"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>In this study, hydrophilic covalent organic framework (COF) nanosheets with triazine structures and hydrophobic COF nanosheets with fluorinated imine skeletons were designed to enhance the membrane separation process for ethanol pervaporation. The mass transfer of ethanol\u2013water mixtures within the confined structures of COF nanosheets was investigated through experimental characterization and computational simulations, establishing a quantitative relationship between mass transfer performance and the pore size\/chemical properties of COF nanosheets. These COF nanosheets were employed to optimize the confined architecture of mixed matrix membranes (MMMs), effectively regulating the critical parameters of MMMs and improving their separation performance. Through systematic investigation of formation mechanisms and modulation principles, we revealed the correlation between confined structural parameters and membrane separation efficiency. This work develops methodologies and foundational theories to overcome the permeability-selectivity trade-off effect, providing theoretical guidance for designing novel membrane materials with ethanol-permelective COF-based MMMs.<\/jats:p>","DOI":"10.3390\/membranes15100316","type":"journal-article","created":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T11:57:42Z","timestamp":1760529462000},"page":"316","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["PDMS Mixed Matrix Membrane with Confined Mass Transfer Structure: The Effect of COFs with Different Porous Structures and Chemical Properties in the Pervaperation Process"],"prefix":"10.3390","volume":"15","author":[{"given":"Yuan","family":"Zhai","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zimeng","family":"Zheng","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinhao","family":"Cui","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kun","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ao","family":"Sheng","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9006-5614","authenticated-orcid":false,"given":"Heyun","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China"},{"name":"Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi 832003, China"},{"name":"Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Rigion, Shihezi 832003, China"},{"name":"Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bingtuan, Shihezi 832003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"119557","DOI":"10.1016\/j.memsci.2021.119557","article-title":"Pervaporation Membrane Materials: Recent Trends and Perspectives","volume":"636","author":"Liu","year":"2021","journal-title":"J. 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