Construction of brick-wall-like topological olefin-linked covalent organic frameworks via a steric-hindrance-mediated strategy for efficient uranium capture.
The poor materials stability, sluggish adsorption kinetics, and limited selectivity present major challenges for uranium recovery from tantalum-niobium ore leachate. Herein, by leveraging spatial constraints imposed by cyano groups and the structural robustness of irreversible olefin linkages, a highly crystalline olef...