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Engineer Nanoscale ...
Engineer Nanoscale Defects into Selective Channels : MOF-Enhanced Li+ Separation by Porous Layered Double Hydroxide Membrane
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- Lu, Yahua (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Beijing University of Technology, People’s Republic of China
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Zhou, Rongkun (författare)
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Wang, Naixin (författare)
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Yang, Yuye (författare)
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Zheng, Zilong (författare)
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- Zhang, Miao, 1990- (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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An, Quan-Fu (författare)
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- Yuan, Jiayin, 1979- (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Nano-Micro Letters. - 2311-6706. ; 15:1
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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+/Mg2+ 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.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Nanoscale defect construction
- Nanoparticles restrict growth
- Two-dimensional composite membrane
- Lithium-ion extraction
- High stability
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Lu, Yahua
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Zhou, Rongkun
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Wang, Naixin
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Yang, Yuye
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Zheng, Zilong
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Zhang, Miao, 199 ...
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visa fler...
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An, Quan-Fu
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Yuan, Jiayin, 19 ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Nanoteknik
- Artiklar i publikationen
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Nano-Micro Lette ...
- Av lärosätet
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Stockholms universitet