Lithium ion-selective membrane with 2D subnanometer channels.

Razmjou, A; Eshaghi, G; Orooji, Y; Hosseini, E; Korayem, AH; Mohagheghian, F; Boroumand, Y; Noorbakhsh, A; Asadnia, M; Chen, V

Lithium ion-selective membrane with 2D subnanometer channels.

Razmjou, A Eshaghi, G Orooji, Y Hosseini, E Korayem, AH Mohagheghian, F Boroumand, Y Noorbakhsh, A Asadnia, M Chen, V

Permalink

Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Water Res, 2019, 159, pp. 313-323
Issue Date:: 2019-08-01

Closed Access

	Filename	Description	Size
	Lithium ion-selective membrane with 2D subnanometer channels..pdf	Published version	4.78 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Razmjou, A
dc.contributor.author	Eshaghi, G
dc.contributor.author	Orooji, Y
dc.contributor.author	Hosseini, E
dc.contributor.author	Korayem, AH
dc.contributor.author	Mohagheghian, F
dc.contributor.author	Boroumand, Y
dc.contributor.author	Noorbakhsh, A
dc.contributor.author	Asadnia, M
dc.contributor.author	Chen, V https://orcid.org/0000-0002-6604-6197
dc.date.accessioned	2023-03-26T23:13:37Z
dc.date.available	2019-05-05
dc.date.available	2023-03-26T23:13:37Z
dc.date.issued	2019-08-01
dc.identifier.citation	Water Res, 2019, 159, pp. 313-323
dc.identifier.issn	0043-1354
dc.identifier.issn	1879-2448
dc.identifier.uri	http://hdl.handle.net/10453/168462
dc.description.abstract	In the last two years, the rapidly rising demand for lithium has exceeded supply, resulting in a sharp increase in the price of the metal. Conventional electric driven membrane processes can separate Li+ from divalent cations, but there is virtually no commercial membrane that can efficiently and selectively extract Li+ from a solution containing chemically similar ions such as Na+ and K+. Here, we show that the different movement behavior of Li+ ion within the sub-nanometre channel leads to Li+ ion-selectivity and high transport rate. Using inexpensive negatively charged 2D subnanometer hydrous phyllosilicate channels with interlayer space of 0.43 nm in a membrane-like morphology, we observed that for an interlayer spacing of below 1 nm, Li+ ions move along the length of the channel by jumping between its two walls. However, for above 1 nm spacing, the ions used only one channel wall to jump and travel. Molecular dynamic (MD) simulation also revealed that ions within the nanochannel exhibit acceleration-deceleration behavior. Experimental results showed that the nanochannels could selectively transport monovalent ions of Li+> Na+> and K+ while excluding other ions such as Cl- and Ca2+, with the selectivity ratios of 1.26, 1.59 and 1.36 for Li+/Na+, Li+/K+, and Na+/K+ respectively, which far exceed the mobility ratios in traditional porous ion exchange membranes. The findings of this work provide researchers with not only a new understanding of ions movement behavior within subnanometer confined areas but also make a platform for the future design of ion-selective membranes.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Water Res
dc.relation.isbasedon	10.1016/j.watres.2019.05.018
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Cations, Divalent
dc.subject.mesh	Cations, Monovalent
dc.subject.mesh	Lithium
dc.subject.mesh	Membranes
dc.subject.mesh	Sodium
dc.subject.mesh	Membranes
dc.subject.mesh	Cations, Divalent
dc.subject.mesh	Cations, Monovalent
dc.subject.mesh	Lithium
dc.subject.mesh	Sodium
dc.subject.mesh	Cations, Divalent
dc.subject.mesh	Cations, Monovalent
dc.subject.mesh	Lithium
dc.subject.mesh	Membranes
dc.subject.mesh	Sodium
dc.title	Lithium ion-selective membrane with 2D subnanometer channels.
dc.type	Journal Article
utslib.citation.volume	159
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Provost
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-26T23:13:35Z
pubs.publication-status	Published
pubs.volume	159

Abstract:

In the last two years, the rapidly rising demand for lithium has exceeded supply, resulting in a sharp increase in the price of the metal. Conventional electric driven membrane processes can separate Li+ from divalent cations, but there is virtually no commercial membrane that can efficiently and selectively extract Li+ from a solution containing chemically similar ions such as Na+ and K+. Here, we show that the different movement behavior of Li+ ion within the sub-nanometre channel leads to Li+ ion-selectivity and high transport rate. Using inexpensive negatively charged 2D subnanometer hydrous phyllosilicate channels with interlayer space of 0.43 nm in a membrane-like morphology, we observed that for an interlayer spacing of below 1 nm, Li+ ions move along the length of the channel by jumping between its two walls. However, for above 1 nm spacing, the ions used only one channel wall to jump and travel. Molecular dynamic (MD) simulation also revealed that ions within the nanochannel exhibit acceleration-deceleration behavior. Experimental results showed that the nanochannels could selectively transport monovalent ions of Li+> Na+> and K+ while excluding other ions such as Cl- and Ca2+, with the selectivity ratios of 1.26, 1.59 and 1.36 for Li+/Na+, Li+/K+, and Na+/K+ respectively, which far exceed the mobility ratios in traditional porous ion exchange membranes. The findings of this work provide researchers with not only a new understanding of ions movement behavior within subnanometer confined areas but also make a platform for the future design of ion-selective membranes.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/168462