A Bioinspired Membrane with Ultrahigh Li⁺/Na⁺ and Li⁺/K⁺ Separations Enables Direct Lithium Extraction from Brine.

ABSTRACT: Membranes with precise Li⁺/Na⁺ and Li⁺/K⁺ separations are imperative for lithium extraction from brine to address the lithium supply shortage. However, achieving this goal remains a daunting challenge due to the similar valence, chemical properties, and subtle atomic-scale distinctions among these monovalent cations. Herein, inspired by the strict size-sieving effect of biological ion channels, a membrane is presented based on nonporous crystalline materials featuring structurally rigid, dimensionally confined, and long-range ordered ion channels that exclusively permeate naked Li⁺ but block Na⁺ and K⁺. This naked-Li⁺-sieving behavior not only enables unprecedented Li⁺/Na⁺ and Li

SUBMITTER: Fan F 

PROVIDER: S-EPMC11425256 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature