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Fabrication of lithium ion imprinted hybrid membranes with antifouling performance for selective recovery of lithium

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Abstract

With the increasing demand for lithium resources, it is of great significance to develop a new technology for the selective recovery of lithium from complex systems. In the present work, antifouling lithium-imprinted hybrid membranes (LIHMs) were fabricated through a hydrolysis polymerization method using a PVDF/GO hybrid membrane as a basement membrane, and polydopamine as an adhesion layer to anchor imprinted sites. The antifouling experiments demonstrated that LIHMs had the underwater oil contact angle of 152 ± 0.8°. Furthermore, the adsorption isotherms, permeation and adsorption kinetics of the LIHMs were researched in detail. The results displayed that LIHMs showed a distinctive adsorption capacity (27.10 mg g−1) and permselectivity (βK/Li = 5.3780, βCa/Li = 21.9402, βMg/Li = 15.5620) for lithium. Also, the regeneration experiments confirmed the good durability of LIHMs, favoring long-term use. Therefore, the LIHMs provided a powerful tool for the effective separation and recovery of lithium in practical applications.

Graphical abstract: Fabrication of lithium ion imprinted hybrid membranes with antifouling performance for selective recovery of lithium

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Publication details

The article was received on 23 Aug 2017, accepted on 15 Nov 2017 and first published on 15 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03152A
Citation: New J. Chem., 2018, Advance Article
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    Fabrication of lithium ion imprinted hybrid membranes with antifouling performance for selective recovery of lithium

    J. Cui, Y. Zhang, Y. Wang, J. Ding, P. Yu, Y. Yan, C. Li and Z. Zhou, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ03152A

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