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https://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 |
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 |
Published version: | http://dx.doi.org/10.1002/anie.201801094 |
Appears in Collections: | Aurora harvest 8 Chemistry publications |
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