{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T21:22:07Z","timestamp":1792531327569,"version":"4.5.0"},"reference-count":42,"publisher":"Wiley","issue":"23","license":[{"start":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T00:00:00Z","timestamp":1759881600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:p>\n                    Developing new highly selective ion separation membranes is of great significance, but it remains a major challenge. This article reports a type of covalent organic framework (ZUT\u2010CEs\u2010COF) using crown ether organic units. ZUT\u2010CEs\u2010COF has a high specific surface area, good crystallinity, and excellent stability. The ZUT\u2010CEs\u2010COF functionalized with crown ethers structure is introduced as a nanofiller into the nanofiltration membrane separation system for ion separation. Interestingly, the thin\u2010film nanocomposite membrane regulated by ZUT\u2010CEs\u2010COF shows a significant increase in the selectivity coefficient for magnesium\/lithium (Li\n                    <jats:sup>+<\/jats:sup>\n                    \/Mg\n                    <jats:sup>2+<\/jats:sup>\n                    ) and water flux, achieving a high flux of up to 52.4\u2009L\u2009m\n                    <jats:sup>\u22122<\/jats:sup>\n                    \u2009h\n                    <jats:sup>\u22121<\/jats:sup>\n                    , while achieving an excellent molecular screening coefficient of 26.5 for Li\n                    <jats:sup>+<\/jats:sup>\n                    \/Mg\n                    <jats:sup>2+<\/jats:sup>\n                    . Density functional theory calculations further confirm that the modulation of the binding energy of ions anchored by the nanopores can provide ideas for the construction of separation membranes and promote their potential applications in the selective separation of similar ions with high selectivity.\n                  <\/jats:p>","DOI":"10.1002\/cssc.202501076","type":"journal-article","created":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T21:24:29Z","timestamp":1759958669000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Crown Ether\u2010Based Covalent Organic Framework Packed Nanofiltration Membrane for Efficient Mg\n                    <sup>2+<\/sup>\n                    \/Li\n                    <sup>+<\/sup>\n                    Ion Sieving"],"prefix":"10.1002","volume":"18","author":[{"given":"Zhichao","family":"Shao","sequence":"first","affiliation":[{"name":"Center for Advanced Materials Research Zhongyuan University of Technology  Zhengzhou 450007 P. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0132-5611","authenticated-orcid":false,"given":"Lipeng","family":"Zhai","sequence":"additional","affiliation":[{"name":"Center for Advanced Materials Research Zhongyuan University of Technology  Zhengzhou 450007 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7578-1695","authenticated-orcid":false,"given":"Xiaoquan","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering Zhengzhou University  Zhengzhou Henan 450001 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6832-3127","authenticated-orcid":false,"given":"Yatao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering Zhengzhou University  Zhengzhou Henan 450001 P. R. 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