2D laminar maleic acid-crosslinked MXene membrane with tunable nanochannels for efficient and stable pervaporation desalination.
In: Journal of Membrane Science, Jg. 600 (2020-04-15), S. N.PAG
Online
academicJournal
Zugriff:
Two-dimensional (2D) laminar materials have shown great promise in membrane applications. Herein, a maleic acid covalent-bridged MXene (MXMA) membrane supported on microporous nylon substrate is fabricated via a facile vacuum-assisted filtration synthesis and studied for pervaporation desalination. The adjacent MXene nanosheets are strongly fixed by the covalent bonding formed by the esterification reaction between the carboxyl groups in maleic acid and hydroxyl groups in MXene surface. In this way, the crosslinked MXMA membrane features enlarged and structurally well-packed nanochannels as well as large slip length, leading to outstanding desalination performance with improved water permeance and nearly complete salt rejection. Moreover, the swelling resistance of MXMA membrane is dramatically enhanced due to the strong chemical bond between MXene layers, which contributes to the excellent stability. • A novel maleic acid-crosslinked MXene membrane was fabricated for pervaporation desalination. • Enlarged nanochannels were obtained through crosslinking reaction. • MXMA membrane showed improved water permeation and high salt rejection. • MXMA membrane exhibited excellent antiswelling performance due to the fixed nanochannels. [ABSTRACT FROM AUTHOR]
Titel: |
2D laminar maleic acid-crosslinked MXene membrane with tunable nanochannels for efficient and stable pervaporation desalination.
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Autor/in / Beteiligte Person: | Ding, Mingmei ; Xu, Hang ; Chen, Wei ; Yang, Guang ; Kong, Qing ; Ng, Derrick ; Lin, Tao ; Xie, Zongli |
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Zeitschrift: | Journal of Membrane Science, Jg. 600 (2020-04-15), S. N.PAG |
Veröffentlichung: | 2020 |
Medientyp: | academicJournal |
ISSN: | 0376-7388 (print) |
DOI: | 10.1016/j.memsci.2020.117871 |
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