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Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane

Two-dimensional (2D) membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage, yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation applications. Zeolitic imidazolate framewo...

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Autores principales: Lu, Yahua, Zhou, Rongkun, Wang, Naixin, Yang, Yuye, Zheng, Zilong, Zhang, Miao, An, Quan-Fu, Yuan, Jiayin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10247908/
https://www.ncbi.nlm.nih.gov/pubmed/37286909
http://dx.doi.org/10.1007/s40820-023-01101-w
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author Lu, Yahua
Zhou, Rongkun
Wang, Naixin
Yang, Yuye
Zheng, Zilong
Zhang, Miao
An, Quan-Fu
Yuan, Jiayin
author_facet Lu, Yahua
Zhou, Rongkun
Wang, Naixin
Yang, Yuye
Zheng, Zilong
Zhang, Miao
An, Quan-Fu
Yuan, Jiayin
author_sort Lu, Yahua
collection PubMed
description Two-dimensional (2D) membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage, yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation applications. Zeolitic imidazolate framework functionalized modified layered double hydroxide (ZIF-8@MLDH) composite membranes with high lithium-ion (Li(+)) permeability and excellent operational stability were obtained in this work by in situ depositing functional ZIF-8 nanoparticles into the nanopores acting as framework defects in MLDH membranes. The defect-rich framework amplified the permeability of Li(+), and the site-selective growth of ZIF-8 in the framework defects bettered its selectivity. Specifically speaking, the ZIF-8@MLDH membranes featured a high permeation rate of Li(+) up to 1.73 mol m(−2) h(−1) and a desirable selectivity of Li(+)/Mg(2+) up to 31.9. Simulations supported that the simultaneously enhanced selectivity and permeability of Li(+) are attributed to changes in the type of mass transfer channels and the difference in the dehydration capacity of hydrated metal cations when they pass through nanochannels of ZIF-8. This study will inspire the ongoing research of high-performance 2D membranes through the engineering of defects. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-023-01101-w.
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spelling pubmed-102479082023-06-09 Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane Lu, Yahua Zhou, Rongkun Wang, Naixin Yang, Yuye Zheng, Zilong Zhang, Miao An, Quan-Fu Yuan, Jiayin Nanomicro Lett Article Two-dimensional (2D) membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage, yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation applications. Zeolitic imidazolate framework functionalized modified layered double hydroxide (ZIF-8@MLDH) composite membranes with high lithium-ion (Li(+)) permeability and excellent operational stability were obtained in this work by in situ depositing functional ZIF-8 nanoparticles into the nanopores acting as framework defects in MLDH membranes. The defect-rich framework amplified the permeability of Li(+), and the site-selective growth of ZIF-8 in the framework defects bettered its selectivity. Specifically speaking, the ZIF-8@MLDH membranes featured a high permeation rate of Li(+) up to 1.73 mol m(−2) h(−1) and a desirable selectivity of Li(+)/Mg(2+) up to 31.9. Simulations supported that the simultaneously enhanced selectivity and permeability of Li(+) are attributed to changes in the type of mass transfer channels and the difference in the dehydration capacity of hydrated metal cations when they pass through nanochannels of ZIF-8. This study will inspire the ongoing research of high-performance 2D membranes through the engineering of defects. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-023-01101-w. Springer Nature Singapore 2023-06-07 /pmc/articles/PMC10247908/ /pubmed/37286909 http://dx.doi.org/10.1007/s40820-023-01101-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lu, Yahua
Zhou, Rongkun
Wang, Naixin
Yang, Yuye
Zheng, Zilong
Zhang, Miao
An, Quan-Fu
Yuan, Jiayin
Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title_full Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title_fullStr Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title_full_unstemmed Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title_short Engineer Nanoscale Defects into Selective Channels: MOF-Enhanced Li(+) Separation by Porous Layered Double Hydroxide Membrane
title_sort engineer nanoscale defects into selective channels: mof-enhanced li(+) separation by porous layered double hydroxide membrane
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10247908/
https://www.ncbi.nlm.nih.gov/pubmed/37286909
http://dx.doi.org/10.1007/s40820-023-01101-w
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