Enabling an ultraefficient lithium-selective construction through electric field-assisted ion control.

ABSTRACT: Membranes with precise ion transport behaviors are regarded as an alternative for lithium (Li) extraction from water streams. Current membranes demonstrate limited viability due to the lack of efficient Li⁺-selective architectures. We propose an electric field-assisted ion control hypothesis in reinforcing ultraefficient Li⁺-selective membranes, in which an ionized zeolitic imidazolate framework layer (Q-PEI@ZIF) is constructed via polyethylenimine (PEI) in situ confinement conversion and subsequent quaternization of 2,3-epoxypropyl trimethyl ammonium chloride. In electrodialysis at 5 milliampere per square centimeter, the resulting membrane Q(5%)-PEI(1.0)@ZIF#CEM shows that the ion permeation rates follow the order of K⁺ ~ Li⁺ > Na⁺ >

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC12266119 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature