Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/114280
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Type: Journal article
Title: A regularly channeled lamellar membrane for unparalleled water and organics permeation
Author: Wang, J.
Chen, P.
Shi, B.
Guo, W.
Jaroniec, M.
Qiao, S.
Citation: Angewandte Chemie - International Edition, 2018; 57(23):6814-6818
Publisher: Wiley
Issue Date: 2018
ISSN: 1433-7851
1521-3773
Statement of
Responsibility: 
Jingtao Wang, Pingping Chen, Benbing Shi, Weiwei Guo, Mietek Jaroniec, Shi‐Zhang Qiao
Abstract: Lamellar membranes show exceptional molecular permeation properties of key importance for many applications. However, their design and development need the construction of regular and straight interlayer channels and the establishment of corresponding transport rate equation. The fabrication of a uniformly lamellar membrane is reported using double-layered Ti3 C2 Tx MXenes as rigid building blocks. This membrane possesses ordered and straight 2 nm channels formed via a direct self-stacking, in contrast to the conventional irregular ones from flexible sheets. Such channels permit precise molecular rejection and unparalleled molecular permeation. The permeance of water and organics by this membrane reached 2300 and 5000 L m-2  h-1  bar-1 , respectively. The molecular transfer mechanism in confined nanochannels, and the corresponding model equation are established, paving a way to nanoscale design of highly efficient channeled membranes for transport and separation applications.
Keywords: MXenes; lamellar membranes; molecular transfer mechanism; nanochannels; ultrahigh permeance
Rights: © 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
RMID: 0030083692
DOI: 10.1002/anie.201801094
Grant ID: http://purl.org/au-research/grants/arc/FL170100154
http://purl.org/au-research/grants/arc/DP170104464
http://purl.org/au-research/grants/arc/DP160104866
Appears in Collections:Chemistry publications

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