Regulating the thickness of nanofiltration membranes for efficient water purification.

Fabrication of an organic polymer nanofiltration membrane with both high water permeability and high salt rejection is still a big challenge. Herein, phytic acid (PhA)-modified graphene oxide (GO) was used as the membrane thickness modifier, which was introduced into the thin-film nanoparticle composite (TFN) membrane interfacial polymerization (IP) on a porous substrate. The water flux of the optimally tuned TFN-GP-0.