Thin-film composite membranes for reverse osmosis process are effective converting seawater and brackish water into potable water but usually they are not resistant to chlorine and the boron rejection is poor. Here, the authors show a supramolecular nanocrystalline membrane with ultrathin thickness and well-oriented sub-nano-sized channels to allow for high water permeance, sodium chloride and boron rejection as well as chlorine resistance.
- Gang Lu
- Wentao Shang
- Alicia Kyoungjin An