▎ 摘　　要

The rise of reverse osmosis membranes (RO) has attracted significant attention, which is pivotal to addressing the water shortage. Superior permeability and high selectivity are extremely critical criteria for RO membranes. Therefore, in this study, we reported a novel strategy: pressure spray interface polymerization (PSIP) to prepare ultrathin RO composite membranes. In the approach, besides the developed novel technique, highly permeable holey graphene oxide (HGO) containing nanopores was also used to refine the size of the transport nanochannels during the reaction of m-phenylenediamine (MPD) and the trimethyl chloride (TMC). Meanwhile, the electrostatic interaction between the HGO and MPD provided a solid guarantee for good dispersion in the composite membrane. The resultant pressure spray interface polymerization-highly permeable holey graphene oxide (PSIPHGO) composite membrane displayed high salt rejection and water permeance, which showed high water permeance of 4.0 Lm- 2h- 1bar- 1 and Na2SO4 rejection of 95% in a concentration of 2000 ppm under 5 bar. Moreover, the PSIP-HGO membrane showed outstanding long-term stability and high chemical stability. Therefore, our work may provide a feasible pathway for designing advanced RO membranes for water desalination.