Constructing a carboxyl-rich angstrom-level trap in a metal–organic framework for the selective capture of lithium†
Abstract
A metal–organic-framework-based ion trap was designed via tailoring linker functionality as well as free –COOH density. The mixed-linker UiO-66-H2/H4 exhibits higher adsorption for Li+ ions than H4-free UiO-66-H2 because the H4 linker provides an additional –COOH group in the local region.