Journal article
Unlocking Direct Lithium Extraction in Harsh Conditions through Thiol-Functionalized Metal-Organic Framework Subnanofluidic Membranes
C Zhao, F Feng, J Hou, J Hu, Y Su, JZ Liu, M Hill, BD Freeman, H Wang, H Zhang
Journal of the American Chemical Society | Published : 2024
DOI: 10.1021/jacs.4c02477
Abstract
Metal-organic framework (MOF) membranes with high ion selectivity are highly desirable for direct lithium-ion (Li+) separation from industrial brines. However, very few MOF membranes can efficiently separate Li+ from brines of high Mg2+/Li+ concentration ratios and keep stable in ultrahigh Mg2+-concentrated brines. This work reports a type of MOF-channel membranes (MOFCMs) by growing UiO-66-(SH)2 into the nanochannels of polymer substrates to improve the efficiency of MOF membranes for challenging Li+ extraction. The resulting membranes demonstrate excellent monovalent metal ion selectivity over divalent metal ions, with Li+/Mg2+ selectivity up to 103 since Mg2+ should overcome a higher ener..
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Awarded by Australian Research Council
Funding Acknowledgements
This work was supported by the Australian Research Council (FT200100259, DE220100435, and DP210103888). The authors acknowledge the great help from Dr Kim Chung Nguyen, Dr Qi Han, and Dr Paramita Koley from RMIT University and Dr Anthony De Girolamo from Monash University. The authors acknowledge the facilities, and the scientific and technical assistance of the RMIT University's Microscopy & Microanalysis Facility, a linked laboratory of the Microscopy Australia, enabled by NCRIS. This work was performed in part at the RMIT Micro Nano Research Facility (MNRF) in the Victorian Node of the Australian National Fabrication Facility (ANFF). The employed PET films are part of a UMAT experiment, which was performed at the beamline X0 at the GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany), in the frame of FAIR-Phase 0.