Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination
Zirconium-based MOF membranes exhibit significant potential in energy-efficient desalination. Nevertheless, framework defect elimination, which represents an effective protocol to enhance their molecular sieving capacity and operation stability, remains highly challenging to date. In this study, we...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-01-01
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| Series: | Advanced Membranes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772823425000168 |
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| author | Wenwen Dong Jiahui Yan Taotao Ji Mingming Wu Kunpeng Yu Yi Liu Wenjing Hu Yi Liu |
| author_facet | Wenwen Dong Jiahui Yan Taotao Ji Mingming Wu Kunpeng Yu Yi Liu Wenjing Hu Yi Liu |
| author_sort | Wenwen Dong |
| collection | DOAJ |
| description | Zirconium-based MOF membranes exhibit significant potential in energy-efficient desalination. Nevertheless, framework defect elimination, which represents an effective protocol to enhance their molecular sieving capacity and operation stability, remains highly challenging to date. In this study, we proposed a framework defect patching strategy to prepare robust UiO-66-NH2 membrane with Zr6O4(OH)4(OAc)12 cluster source towards high-efficiency desalination. Ion sieving results indicated that increasing reaction temperature and ratio of ligand to Zr6O4(OH)4(OAc)12 cluster contributed to framework defect elimination. UiO-66-NH2 membranes prepared under optimized conditions exhibited superior metal ion rejection rate (Al3+: 97.7 %) and operation stability over 20 days. Particularly, their water/NaCl separation performance well exceeded majority of reported polycrystalline 3D membranes, offering promising prospects for modulating molecular diffusion kinetics in MOF pores. |
| format | Article |
| id | doaj-art-bb74a7ee65c649c89828e5cfc17a3232 |
| institution | Kabale University |
| issn | 2772-8234 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Membranes |
| spelling | doaj-art-bb74a7ee65c649c89828e5cfc17a32322025-08-20T03:42:15ZengKeAi Communications Co. Ltd.Advanced Membranes2772-82342025-01-01510014210.1016/j.advmem.2025.100142Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalinationWenwen Dong0Jiahui Yan1Taotao Ji2Mingming Wu3Kunpeng Yu4Yi Liu5Wenjing Hu6Yi Liu7State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China; Dalian Key Laboratory of Membrane Materials and Membrane Processes, Dalian University of Technology, Dalian, 116024, China; Corresponding author. State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China.Zirconium-based MOF membranes exhibit significant potential in energy-efficient desalination. Nevertheless, framework defect elimination, which represents an effective protocol to enhance their molecular sieving capacity and operation stability, remains highly challenging to date. In this study, we proposed a framework defect patching strategy to prepare robust UiO-66-NH2 membrane with Zr6O4(OH)4(OAc)12 cluster source towards high-efficiency desalination. Ion sieving results indicated that increasing reaction temperature and ratio of ligand to Zr6O4(OH)4(OAc)12 cluster contributed to framework defect elimination. UiO-66-NH2 membranes prepared under optimized conditions exhibited superior metal ion rejection rate (Al3+: 97.7 %) and operation stability over 20 days. Particularly, their water/NaCl separation performance well exceeded majority of reported polycrystalline 3D membranes, offering promising prospects for modulating molecular diffusion kinetics in MOF pores.http://www.sciencedirect.com/science/article/pii/S2772823425000168Metal-organic frameworkUiO-66Missing-linker defectsDesalinationMembrane |
| spellingShingle | Wenwen Dong Jiahui Yan Taotao Ji Mingming Wu Kunpeng Yu Yi Liu Wenjing Hu Yi Liu Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination Advanced Membranes Metal-organic framework UiO-66 Missing-linker defects Desalination Membrane |
| title | Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination |
| title_full | Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination |
| title_fullStr | Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination |
| title_full_unstemmed | Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination |
| title_short | Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination |
| title_sort | eliminating lattice defects in uio 66 nh2 membrane towards high precision desalination |
| topic | Metal-organic framework UiO-66 Missing-linker defects Desalination Membrane |
| url | http://www.sciencedirect.com/science/article/pii/S2772823425000168 |
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