Sulfonic acid COFs membrane and preparation method and application thereof
The invention discloses a sulfonic acid COFs membrane and a preparation method and application thereof. The sulfonic acid COFs membrane is obtained by using a PAN ultrafiltration membrane to amination modification through dopamine, thensequentially spraying a THB solution and a 2, 5-diaminobenzene s...
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| creator | FAN QIANGWEN WU GUORONG MA JIANGUO LIU SHUJUAN ZHU HAIBO GAO QIRUI LI FUNAN |
| description | The invention discloses a sulfonic acid COFs membrane and a preparation method and application thereof. The sulfonic acid COFs membrane is obtained by using a PAN ultrafiltration membrane to amination modification through dopamine, thensequentially spraying a THB solution and a 2, 5-diaminobenzene sulfonic acid solution or a 2, 5-diamino-1, 4-benzene disulfonic acid solution to the surface of a PDA/PAN membrane for a reaction, and then placing in the mixed solution of 2, 5-diaminobenzene sulfonic acid or 2, 5-diamino-1, 4-benzene disulfonic acid solution and THB solution. The sulfonic acid COFs membrane prepared by the invention not only has the advantages of ordered structure, permanent pores, adjustable pore size and property, better crystallinity and stability and the like, but also overcomes the technical problems of non-ideal adsorption performance, poor circularity, poor acid resistance, easiness in swelling and the like of the existing uranium adsorption membrane under an acidic condition, and is more |
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The sulfonic acid COFs membrane is obtained by using a PAN ultrafiltration membrane to amination modification through dopamine, thensequentially spraying a THB solution and a 2, 5-diaminobenzene sulfonic acid solution or a 2, 5-diamino-1, 4-benzene disulfonic acid solution to the surface of a PDA/PAN membrane for a reaction, and then placing in the mixed solution of 2, 5-diaminobenzene sulfonic acid or 2, 5-diamino-1, 4-benzene disulfonic acid solution and THB solution. The sulfonic acid COFs membrane prepared by the invention not only has the advantages of ordered structure, permanent pores, adjustable pore size and property, better crystallinity and stability and the like, but also overcomes the technical problems of non-ideal adsorption performance, poor circularity, poor acid resistance, easiness in swelling and the like of the existing uranium adsorption membrane under an acidic condition, and is more</description><language>chi ; eng</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; INORGANIC CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211123&DB=EPODOC&CC=CN&NR=113680326A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211123&DB=EPODOC&CC=CN&NR=113680326A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FAN QIANGWEN</creatorcontrib><creatorcontrib>WU GUORONG</creatorcontrib><creatorcontrib>MA JIANGUO</creatorcontrib><creatorcontrib>LIU SHUJUAN</creatorcontrib><creatorcontrib>ZHU HAIBO</creatorcontrib><creatorcontrib>GAO QIRUI</creatorcontrib><creatorcontrib>LI FUNAN</creatorcontrib><title>Sulfonic acid COFs membrane and preparation method and application thereof</title><description>The invention discloses a sulfonic acid COFs membrane and a preparation method and application thereof. 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The sulfonic acid COFs membrane is obtained by using a PAN ultrafiltration membrane to amination modification through dopamine, thensequentially spraying a THB solution and a 2, 5-diaminobenzene sulfonic acid solution or a 2, 5-diamino-1, 4-benzene disulfonic acid solution to the surface of a PDA/PAN membrane for a reaction, and then placing in the mixed solution of 2, 5-diaminobenzene sulfonic acid or 2, 5-diamino-1, 4-benzene disulfonic acid solution and THB solution. The sulfonic acid COFs membrane prepared by the invention not only has the advantages of ordered structure, permanent pores, adjustable pore size and property, better crystallinity and stability and the like, but also overcomes the technical problems of non-ideal adsorption performance, poor circularity, poor acid resistance, easiness in swelling and the like of the existing uranium adsorption membrane under an acidic condition, and is more</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Sulfonic acid COFs membrane and preparation method and application thereof |
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