Simultaneous voltage-gated control of ion and water transport in Zr4-Ti3C2Tx nanochannel membranes
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Le résumé fourni par la source
Controlling water and ion transport across nanoconfined channels is essential for natural biological processes and crucial for breakthroughs in diverse scientific and technological fields. Here, we present an efficient voltage-controlled strategy that simultaneously regulates water and ion diffusion by fine-tuning the external voltage applied to a high-conductivity Zr4-Ti3C2Tx nanochannel membrane, which demonstrates high structural stability in aqueous environments. Under positive voltage, ion permeation increased by a factor of 10.18, whereas negative voltage reduced it to 0.17 of its original value. Interestingly, water diffusion exhibited the opposite response, with negative voltage enhancing water transport due to the facilitated rotation motion of nanoconfined water with the increased interfacial hydrogen bonding. This distinct voltage-gated transport behavior provides a potential solution to the longstanding trade-off between permeation and selectivity in membrane separation. In desalination trials, applying negative voltage improved ion rejection from 72.09 % to 98.57 % and doubled water permeation. Additionally, in lithium concentration applications, our approach enabled simultaneous improvements in water permeation and Li+ rejection. Our findings open promising pathways for advancements in energy, resource, and environmental applications. Efficient voltage-controlled regulation of water and ion transport was achieved in stable Zr4-Ti3C2Tx membranes. Under negative voltage, water diffusion was enhanced while ion transport was suppressed. This provides a promising strategy to overcome the intrinsic permeability– selectivity trade-off.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Simultaneous voltage-gated control of ion and water transport in Zr4-Ti3C2Tx nanochannel membranes
- Date Crossref
- 08/10/2025
- Éditeur
- Springer Science and Business Media LLC
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Xi'an University of Architecture and Technology Key Laboratory of Northwest Water Resources pays non établi dans la noticeUniversité ou école supérieure
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Beijing University of Technology pays non établi dans la noticeUniversité ou école supérieure
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Soochow University pays non établi dans la noticeUniversité ou école supérieure
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School of Environmental & Municipal Engineering Research Institute of Membrane Separation Technology of Shaanxi Province pays non établi dans la noticeUniversité ou école supérieure
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College of Materials Science and Engineering Beijing Key Laboratory of Microstructure and Properties of Solids pays non établi dans la noticeUniversité ou école supérieure
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College of Energy pays non établi dans la noticeUniversité ou école supérieure
Key Laboratory of Northwest Water Resources — Xi'an University of Architecture and Technology, Beijing University of Technology et Soochow University, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.