Ion-imprinted membranes for lithium recovery: A review
Author | Sifani, Zavahir |
Author | Riyaz, Najamus Sahar |
Author | Elmakki, Tasneem |
Author | Tariq, Haseeb |
Author | Ahmad, Zubair |
Author | Chen, Yuan |
Author | Park, Hyunwoong |
Author | Ho, Yeek-Chia |
Author | Shon, Ho Kyong |
Author | Han, Dong Suk |
Available date | 2024-03-13T07:51:42Z |
Publication Date | 2024-04-30 |
Publication Name | Chemosphere |
Identifier | http://dx.doi.org/10.1016/j.chemosphere.2024.141674 |
ISSN | 00456535 |
Abstract | This review critically examines the effectiveness of ion-imprinted membranes (IIMs) in selectively recovering lithium (Li) from challenging sources such as seawater and brine. These membranes feature customized binding sites that specifically target Li ions, enabling selective separation from other ions, thanks to cavities shaped with crown ether or calixarene for improved selectivity. The review thoroughly investigates the application of IIMs in Li extraction, covering extensive sections on 12-crown-4 ether (a fundamental crown ether for Li), its modifications, calixarenes, and other materials for creating imprinting sites. It evaluates these systems against several criteria, including the source solution's complexity, Li+ concentration, operational pH, selectivity, and membrane's ability for regeneration and repeated use. This evaluation places IIMs as a leading-edge technology for Li extraction, surpassing traditional methods like ion-sieves, particularly in high Mg2+/Li+ ratio brines. It also highlights the developmental challenges of IIMs, focusing on optimizing adsorption, maintaining selectivity across varied ionic solutions, and enhancing permselectivity. The review reveals that while the bulk of research is still exploratory, only a limited portion has progressed to detailed lab verification, indicating that the application of IIMs in Li+ recovery is still at an embryonic stage, with no instances of pilot-scale trials reported. This thorough review elucidates the potential of IIMs in Li recovery, cataloging advancements, pinpointing challenges, and suggesting directions for forthcoming research endeavors. This informative synthesis serves as a valuable resource for both the scientific community and industry professionals navigating this evolving field. |
Sponsor | This study is made possible by Qatar National Research Fund (QNRF) under National Priorities Research Program (NPRP) grant (#NPRP12S-0227-190166). Open Access funding is provided by the Qatar National Library (QNL). H.P. is grateful to the National Research Foundation of Korea for financial support (RS-2023-00254645). |
Language | en |
Publisher | Elsevier |
Subject | Lithium Seawater Brine Recovery Ion-imprinted membrane (IIM) |
Type | Article |
Volume Number | 354 |
Open Access user License | http://creativecommons.org/licenses/by/4.0/ |
ESSN | 1879-1298 |
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