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Article: Structure architecture of micro/nanoscale ZIF-L on a 3D printed membrane for a superhydrophobic and underwater superoleophobic surface

TitleStructure architecture of micro/nanoscale ZIF-L on a 3D printed membrane for a superhydrophobic and underwater superoleophobic surface
Authors
Issue Date2019
Citation
Journal of Materials Chemistry A, 2019, v. 7, n. 6, p. 2723-2729 How to Cite?
AbstractSurfaces with superhydrophobicity and underwater superoleophobicity have attracted tremendous attention in oil/water separation due to their high separation efficiency. The key challenge lies in the construction of a hierarchically micro/nanoscale structural surface. In this study, a hierarchically micro/nanoscale structural surface was synthesized by a simple two-step designing of a unique three-dimensional multiscale ZIF-L on a 3D printed membrane for a superhydrophobic and underwater superoleophobic surface. This approach involves the synthesis of two novel ZIF-Ls. The first ZIF-L synthesized by using an aqueous system with a relatively high concentration of 2-methylimidazole (Hmim) and zinc ions displayed a three-dimensional leaf-crossed structure. The second micro/nanostructural ZIF-L is obtained by a second growth of small flat rod-shape and needle-like ZIF-Ls on the surface of leaf-crossed ZIF-L. Two-step deposition of such multiscale ZIF-Ls on a rough 3D printed PA membrane yields a perfect multiscale micro/nano-structural membrane. This hierarchical surface endows the membrane with superwetting properties. When being coated with PDMS, this membrane exhibits extreme superhydrophobicity with a sliding water contact angle as low as 1.56° and superoleophilicity with an oil contact angle of zero simultaneously. In addition, after being wetted with water, it demonstrates superhydrophilicity and underwater superoleophobicity. When these membranes are applied for oil/water separation, a high oil rejection of over 99% and an oil flux of over 24000 L (m -2 h -1 ) are attained. The stepwise ZIF-L design provides a facile and effective strategy to construct multiscale micro/nano-structures.
Persistent Identifierhttp://hdl.handle.net/10722/327966
ISSN
2023 Impact Factor: 10.7
2023 SCImago Journal Rankings: 2.804
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYuan, Shushan-
dc.contributor.authorZhu, Junyong-
dc.contributor.authorLi, Yi-
dc.contributor.authorZhao, Yan-
dc.contributor.authorLi, Jian-
dc.contributor.authorVan Puyvelde, Peter-
dc.contributor.authorVan Der Bruggen, Bart-
dc.date.accessioned2023-06-05T06:52:59Z-
dc.date.available2023-06-05T06:52:59Z-
dc.date.issued2019-
dc.identifier.citationJournal of Materials Chemistry A, 2019, v. 7, n. 6, p. 2723-2729-
dc.identifier.issn2050-7488-
dc.identifier.urihttp://hdl.handle.net/10722/327966-
dc.description.abstractSurfaces with superhydrophobicity and underwater superoleophobicity have attracted tremendous attention in oil/water separation due to their high separation efficiency. The key challenge lies in the construction of a hierarchically micro/nanoscale structural surface. In this study, a hierarchically micro/nanoscale structural surface was synthesized by a simple two-step designing of a unique three-dimensional multiscale ZIF-L on a 3D printed membrane for a superhydrophobic and underwater superoleophobic surface. This approach involves the synthesis of two novel ZIF-Ls. The first ZIF-L synthesized by using an aqueous system with a relatively high concentration of 2-methylimidazole (Hmim) and zinc ions displayed a three-dimensional leaf-crossed structure. The second micro/nanostructural ZIF-L is obtained by a second growth of small flat rod-shape and needle-like ZIF-Ls on the surface of leaf-crossed ZIF-L. Two-step deposition of such multiscale ZIF-Ls on a rough 3D printed PA membrane yields a perfect multiscale micro/nano-structural membrane. This hierarchical surface endows the membrane with superwetting properties. When being coated with PDMS, this membrane exhibits extreme superhydrophobicity with a sliding water contact angle as low as 1.56° and superoleophilicity with an oil contact angle of zero simultaneously. In addition, after being wetted with water, it demonstrates superhydrophilicity and underwater superoleophobicity. When these membranes are applied for oil/water separation, a high oil rejection of over 99% and an oil flux of over 24000 L (m -2 h -1 ) are attained. The stepwise ZIF-L design provides a facile and effective strategy to construct multiscale micro/nano-structures.-
dc.languageeng-
dc.relation.ispartofJournal of Materials Chemistry A-
dc.titleStructure architecture of micro/nanoscale ZIF-L on a 3D printed membrane for a superhydrophobic and underwater superoleophobic surface-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c8ta10249j-
dc.identifier.scopuseid_2-s2.0-85061161527-
dc.identifier.volume7-
dc.identifier.issue6-
dc.identifier.spage2723-
dc.identifier.epage2729-
dc.identifier.eissn2050-7496-
dc.identifier.isiWOS:000457893400033-

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