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- Publisher Website: 10.1021/acs.nanolett.4c01512
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Article: Polar Solvent-Induced Spontaneous Nanofoaming for Synthesizing Ultra-High-Performance Polyamide Nanofiltration Membranes
Title | Polar Solvent-Induced Spontaneous Nanofoaming for Synthesizing Ultra-High-Performance Polyamide Nanofiltration Membranes |
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Authors | |
Keywords | monomer enrichment nanobubble features nanofiltration polyamide membranes polar solvent-assisted interfacial polymerization |
Issue Date | 19-Jun-2024 |
Publisher | American Chemical Society |
Citation | Nano Letters, 2024, v. 24, n. 24, p. 7373-7380 How to Cite? |
Abstract | Nanofiltration membranes with both high water permeance and selectivity are perpetually studied because of their applications in water purification. However, these two critical attributes are considered to be mutually exclusive. Here, we introduce a polar solvent, dichloromethane, in place of the apolar hexane used for decades as the organic phase for membrane interfacial polymerization synthesis to solve this dilemma. When a polar solvent as the organic phase is combined with a solvent-resistant aramid nanofibrous hydrogel film as the water phase, monomer enrichment in the reaction zone leads to a polyamide nanofiltration membrane with densely distributed nanobubble features, enhanced nanoporosity, and a loosened backbone. Benefiting from these structural features, the resulting membrane exhibits superior properties with a combination of high water permeance (52.7 L m–2 h–1 bar–1) and selectivity (water/Na2SO4, 36 bar–1; NaCl/Na2SO4, 357 bar–1), outperforming traditional nanofiltration membranes. We envision that this novel technology involving polar solvent systems and the water phase of nanofibrous hydrogel would provide new opportunities for membrane development for environmental engineering. |
Persistent Identifier | http://hdl.handle.net/10722/344773 |
ISSN | 2023 Impact Factor: 9.6 2023 SCImago Journal Rankings: 3.411 |
DC Field | Value | Language |
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dc.contributor.author | Wang, Ares Li | - |
dc.contributor.author | He, Huimin | - |
dc.contributor.author | Gan, Qimao | - |
dc.contributor.author | Guo, Hao | - |
dc.contributor.author | Yang, Zhe | - |
dc.contributor.author | Xu, Lizhi | - |
dc.contributor.author | Tang, Y Chuyang | - |
dc.date.accessioned | 2024-08-12T04:07:20Z | - |
dc.date.available | 2024-08-12T04:07:20Z | - |
dc.date.issued | 2024-06-19 | - |
dc.identifier.citation | Nano Letters, 2024, v. 24, n. 24, p. 7373-7380 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10722/344773 | - |
dc.description.abstract | <p>Nanofiltration membranes with both high water permeance and selectivity are perpetually studied because of their applications in water purification. However, these two critical attributes are considered to be mutually exclusive. Here, we introduce a polar solvent, dichloromethane, in place of the apolar hexane used for decades as the organic phase for membrane interfacial polymerization synthesis to solve this dilemma. When a polar solvent as the organic phase is combined with a solvent-resistant aramid nanofibrous hydrogel film as the water phase, monomer enrichment in the reaction zone leads to a polyamide nanofiltration membrane with densely distributed nanobubble features, enhanced nanoporosity, and a loosened backbone. Benefiting from these structural features, the resulting membrane exhibits superior properties with a combination of high water permeance (52.7 L m<sup>–2</sup> h<sup>–1</sup> bar<sup>–1</sup>) and selectivity (water/Na<sub>2</sub>SO<sub>4</sub>, 36 bar<sup>–1</sup>; NaCl/Na<sub>2</sub>SO<sub>4</sub>, 357 bar<sup>–1</sup>), outperforming traditional nanofiltration membranes. We envision that this novel technology involving polar solvent systems and the water phase of nanofibrous hydrogel would provide new opportunities for membrane development for environmental engineering.<br></p> | - |
dc.language | eng | - |
dc.publisher | American Chemical Society | - |
dc.relation.ispartof | Nano Letters | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | monomer enrichment | - |
dc.subject | nanobubble features | - |
dc.subject | nanofiltration polyamide membranes | - |
dc.subject | polar solvent-assisted interfacial polymerization | - |
dc.title | Polar Solvent-Induced Spontaneous Nanofoaming for Synthesizing Ultra-High-Performance Polyamide Nanofiltration Membranes | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.4c01512 | - |
dc.identifier.scopus | eid_2-s2.0-85195610713 | - |
dc.identifier.volume | 24 | - |
dc.identifier.issue | 24 | - |
dc.identifier.spage | 7373 | - |
dc.identifier.epage | 7380 | - |
dc.identifier.eissn | 1530-6992 | - |
dc.identifier.issnl | 1530-6984 | - |