Extracting high-purity salt from saline water through conventional processes is complex and environmentally unsustainable. A diffusion-driven selective crystallization strategy that uses a precisely designed floating porous membrane to suppress non-ion-selective transfer enables simple and precise ion separation and high-purity salt production from mixed source solutions such as Na+/K+, Ba2+/K+ and Mg2+/Li+.
- Yang Liu
- Changting Wang
- Peng Wang
