Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving
Abstract Two‐dimensional (2D) nanochannels have demonstrated outstanding performance for sieving specific molecules or ions, owing to their uniform molecular channel sizes and interlayer physical/chemical properties. However, controllably tuning nanochannel spaces with specific sizes and simultaneou...
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Wiley
2025-02-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409556 |
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| author | Yue You Yuxi Ma Xianghui Zeng Yichao Wang Juan Du Yijun Qian Guoliang Yang Yuyu Su Weiwei Lei Shuaifei Zhao Yan Qing Yiqiang Wu Jingliang Li |
| author_facet | Yue You Yuxi Ma Xianghui Zeng Yichao Wang Juan Du Yijun Qian Guoliang Yang Yuyu Su Weiwei Lei Shuaifei Zhao Yan Qing Yiqiang Wu Jingliang Li |
| author_sort | Yue You |
| collection | DOAJ |
| description | Abstract Two‐dimensional (2D) nanochannels have demonstrated outstanding performance for sieving specific molecules or ions, owing to their uniform molecular channel sizes and interlayer physical/chemical properties. However, controllably tuning nanochannel spaces with specific sizes and simultaneously achieving high mechanical strength remain the main challenges. In this work, the inter‐sheet gallery d‐spacing of graphene oxide (GO) membrane is successfully tailored with high mechanical strength via a general radical‐induced polymerization strategy. The introduced amide groups from N‐Vinylformamide significantly reinforce the 2D nanochannels within the freestanding membranes, resulting in an ultrahigh tensile strength of up to 105 MPa. The d‐spacing of the membrane is controllably tuned within a range of 0.799–1.410 nm, resulting in a variable water permeance of up to 218 L m−2 h−1 bar−1 (1304% higher than that of the pristine GO membranes). In particular, the tailored membranes demonstrate excellent water permeance stability (140 L m−2 h−1 bar−1) in a 200‐h long‐term operation and high selectivity of solutes under harsh conditions, including a wide range of pH from 4.0 to 10.0, up to a loading pressure of 12 bar and an external temperature of 40 °C. This approach comprehensively achieves a balance between sieving performance and mechanical strength, satisfying the requirements for the next‐generation molecular sieving membranes. |
| format | Article |
| id | doaj-art-bd74e1380c544abd9cd92a91ecb9718f |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-bd74e1380c544abd9cd92a91ecb9718f2025-08-20T02:30:35ZengWileyAdvanced Science2198-38442025-02-01128n/an/a10.1002/advs.202409556Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular SievingYue You0Yuxi Ma1Xianghui Zeng2Yichao Wang3Juan Du4Yijun Qian5Guoliang Yang6Yuyu Su7Weiwei Lei8Shuaifei Zhao9Yan Qing10Yiqiang Wu11Jingliang Li12Institute for Frontier Materials Deakin University Geelong Victoria 3220 AustraliaDepartment of Applied Chemistry and Environmental Science School of Science RMIT University Melbourne Victoria 3000 AustraliaFaculty of Materials Wuhan University of Science & Technology Wuhan 430081 ChinaDepartment of Applied Chemistry and Environmental Science School of Science RMIT University Melbourne Victoria 3000 AustraliaInstitute for Frontier Materials Deakin University Geelong Victoria 3220 AustraliaKey Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry College of Energy Soochow University Suzhou 215006 ChinaDepartment of Applied Chemistry and Environmental Science School of Science RMIT University Melbourne Victoria 3000 AustraliaDepartment of Chemical and Environmental Engineering, School of Engineering RMIT University Melbourne Victoria 3000 AustraliaDepartment of Applied Chemistry and Environmental Science School of Science RMIT University Melbourne Victoria 3000 AustraliaInstitute for Frontier Materials Deakin University Geelong Victoria 3220 AustraliaCollege of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaCollege of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaInstitute for Frontier Materials Deakin University Geelong Victoria 3220 AustraliaAbstract Two‐dimensional (2D) nanochannels have demonstrated outstanding performance for sieving specific molecules or ions, owing to their uniform molecular channel sizes and interlayer physical/chemical properties. However, controllably tuning nanochannel spaces with specific sizes and simultaneously achieving high mechanical strength remain the main challenges. In this work, the inter‐sheet gallery d‐spacing of graphene oxide (GO) membrane is successfully tailored with high mechanical strength via a general radical‐induced polymerization strategy. The introduced amide groups from N‐Vinylformamide significantly reinforce the 2D nanochannels within the freestanding membranes, resulting in an ultrahigh tensile strength of up to 105 MPa. The d‐spacing of the membrane is controllably tuned within a range of 0.799–1.410 nm, resulting in a variable water permeance of up to 218 L m−2 h−1 bar−1 (1304% higher than that of the pristine GO membranes). In particular, the tailored membranes demonstrate excellent water permeance stability (140 L m−2 h−1 bar−1) in a 200‐h long‐term operation and high selectivity of solutes under harsh conditions, including a wide range of pH from 4.0 to 10.0, up to a loading pressure of 12 bar and an external temperature of 40 °C. This approach comprehensively achieves a balance between sieving performance and mechanical strength, satisfying the requirements for the next‐generation molecular sieving membranes.https://doi.org/10.1002/advs.2024095562D membraneshigh water permeanceradical‐polymerizationrobust nanochannelswater purification |
| spellingShingle | Yue You Yuxi Ma Xianghui Zeng Yichao Wang Juan Du Yijun Qian Guoliang Yang Yuyu Su Weiwei Lei Shuaifei Zhao Yan Qing Yiqiang Wu Jingliang Li Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving Advanced Science 2D membranes high water permeance radical‐polymerization robust nanochannels water purification |
| title | Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving |
| title_full | Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving |
| title_fullStr | Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving |
| title_full_unstemmed | Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving |
| title_short | Tailoring Robust 2D Nanochannels by Radical Polymerization for Efficient Molecular Sieving |
| title_sort | tailoring robust 2d nanochannels by radical polymerization for efficient molecular sieving |
| topic | 2D membranes high water permeance radical‐polymerization robust nanochannels water purification |
| url | https://doi.org/10.1002/advs.202409556 |
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