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https://hdl.handle.net/2440/113731
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Type: | Journal article |
Title: | A Two-Dimensional Lamellar Membrane: MXene Nanosheet Stacks |
Author: | Ding, L. Wei, Y. Wang, Y. Chen, H. Caro, J. Wang, H. |
Citation: | Angewandte Chemie International Edition, 2017; 56(7):1825-1829 |
Publisher: | Wiley |
Issue Date: | 2017 |
ISSN: | 1433-7851 1521-3773 |
Abstract: | Two-dimensional (2D) materials are promising candidates for advanced water purification membranes. A new kind of lamellar membrane is based on a stack of 2D MXene nanosheets. Starting from compact Ti3 AlC2 , delaminated nanosheets of the composition Ti3 C2 Tx with the functional groups T (O, OH, and/or F) can be produced by etching and ultrasonication and stapled on a porous support by vacuum filtration. The MXene membrane supported on anodic aluminum oxide (AAO) substrate shows excellent water permeance (more than 1000 L m-2 h-1 bar-1 ) and favorable rejection rate (over 90 %) for molecules with sizes larger than 2.5 nm. The water permeance through the MXene membrane is much higher than that of the most membranes with similar rejections. Long-time operation also reveals the outstanding stability of the MXene membrane for water purification. |
Keywords: | MXenes Ti3C2TX membranes separation two-dimensional nanosheets |
DOI: | 10.1002/anie.201609306 |
Published version: | http://dx.doi.org/10.1002/anie.201609306 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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