Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization
The rapid development of the global energy industry has driven an escalating worldwide demand for lithium resources. As a major lithium source, salt lake brines contain abundant divalent ions that hinder efficient lithium extraction. Compared with conventional lithium recovery technologies, nanofilt...
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MDPI AG
2025-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/13/967 |
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| author | Xinyu Zeng Chunchun Meng Zihan Xu Xinwu Li Haochen Zhu Guangming Li |
| author_facet | Xinyu Zeng Chunchun Meng Zihan Xu Xinwu Li Haochen Zhu Guangming Li |
| author_sort | Xinyu Zeng |
| collection | DOAJ |
| description | The rapid development of the global energy industry has driven an escalating worldwide demand for lithium resources. As a major lithium source, salt lake brines contain abundant divalent ions that hinder efficient lithium extraction. Compared with conventional lithium recovery technologies, nanofiltration membranes emerge as an energy-efficient and environmentally friendly alternative. Over the past decade, interfacial polymerization has been widely adopted to fabricate nanofiltration membranes for lithium–magnesium separation, with studies confirming the superior performance of positively charged membranes in distinguishing monovalent and divalent cations. This review systematically summarizes recent advancements in positively charged nanofiltration membranes synthesized via interfacial polymerization for lithium–magnesium separation, categorizing the design strategies into five distinct approaches. The correlations between intrinsic membrane structural characteristics and separation performance are critically analyzed. Furthermore, current challenges and future research directions are discussed to provide new perspectives for developing high-performance positively charged composite nanofiltration membranes. This work aims to inspire innovative designs and accelerate the practical implementation of nanofiltration technology in lithium extraction from salt lake brines. |
| format | Article |
| id | doaj-art-22fd6239564041c8b5171042eda85fae |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-22fd6239564041c8b5171042eda85fae2025-08-20T03:28:32ZengMDPI AGNanomaterials2079-49912025-06-01151396710.3390/nano15130967Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial PolymerizationXinyu Zeng0Chunchun Meng1Zihan Xu2Xinwu Li3Haochen Zhu4Guangming Li5State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, ChinaThe rapid development of the global energy industry has driven an escalating worldwide demand for lithium resources. As a major lithium source, salt lake brines contain abundant divalent ions that hinder efficient lithium extraction. Compared with conventional lithium recovery technologies, nanofiltration membranes emerge as an energy-efficient and environmentally friendly alternative. Over the past decade, interfacial polymerization has been widely adopted to fabricate nanofiltration membranes for lithium–magnesium separation, with studies confirming the superior performance of positively charged membranes in distinguishing monovalent and divalent cations. This review systematically summarizes recent advancements in positively charged nanofiltration membranes synthesized via interfacial polymerization for lithium–magnesium separation, categorizing the design strategies into five distinct approaches. The correlations between intrinsic membrane structural characteristics and separation performance are critically analyzed. Furthermore, current challenges and future research directions are discussed to provide new perspectives for developing high-performance positively charged composite nanofiltration membranes. This work aims to inspire innovative designs and accelerate the practical implementation of nanofiltration technology in lithium extraction from salt lake brines.https://www.mdpi.com/2079-4991/15/13/967nanofiltration membraneinterfacial polymerizationpositively-charged NF membraneMg<sup>2+</sup>/Li<sup>+</sup> separation |
| spellingShingle | Xinyu Zeng Chunchun Meng Zihan Xu Xinwu Li Haochen Zhu Guangming Li Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization Nanomaterials nanofiltration membrane interfacial polymerization positively-charged NF membrane Mg<sup>2+</sup>/Li<sup>+</sup> separation |
| title | Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization |
| title_full | Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization |
| title_fullStr | Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization |
| title_full_unstemmed | Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization |
| title_short | Recent Advances on the Positively-Charged Nanofiltration Membranes for Mg<sup>2+</sup>/Li<sup>+</sup> Separation Through Interfacial Polymerization |
| title_sort | recent advances on the positively charged nanofiltration membranes for mg sup 2 sup li sup sup separation through interfacial polymerization |
| topic | nanofiltration membrane interfacial polymerization positively-charged NF membrane Mg<sup>2+</sup>/Li<sup>+</sup> separation |
| url | https://www.mdpi.com/2079-4991/15/13/967 |
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