Lamellar graphene oxide (GO) membranes have gained substantial interest for molecular separation processes. However, GO membranes have shown inefficient separation performance levels due to their possession of sufficient functional groups that lead to swelling under applied hydraulic pressure. Herein, we demonstrate a highly stable and ultrafast filtrable graphene oxide-boron nitride (GOBN) hybrid membrane by incorporating boron nitride (BN) nanosheets into a GO membrane to restrict swelling and provide efficient hydraulic pressure separation characteristics. This new heterostructure retains the GOBN membrane microstructure and provides more nanochannels around the incorporation sites due to the small size of BN nanosheets; this phenomenon increases the permeance to 1310 Lm⁻²h⁻¹bar⁻¹, which is nearly six times higher than that of the pure GO membrane, with a high rejection reaching 99.2% for aqueous organic dyes. More importantly, the GOBN hybrid membrane shows an impressive permeance and dye molecule rejection performance characteristic across a range of organic solvents, such as methanol, ethanol, and isopropyl alcohol; the performance characteristics are better than those for the GO membrane. Our GOBN membrane with a stable microstructure opens opportunities for developing a high-performance multiple solvent nanofiltration membrane that surpasses the permeability-selectivity trade-off.

层状氧化石墨烯 (GO) 膜在分子分离过程中获得了极大的兴趣。然而，GO 膜显示出低效的分离性能水平，因为它们拥有足够的官能团，导致在施加的液压下膨胀。在此，我们通过将氮化硼 (BN) 纳米片掺入 GO 膜中以限制溶胀并提供有效的液压分离特性，展示了一种高度稳定且超快可过滤的氧化石墨烯-氮化硼 (GOBN) 杂化膜。这种新的异质结构保留了 GOBN 膜的微观结构，并由于 BN 纳米片的小尺寸而在结合位点周围提供了更多的纳米通道；这种现象将磁导率增加到 1310 Lm ⁻² h ⁻¹ bar^-1，比纯GO膜高近六倍，对水性有机染料的截留率高达99.2%。更重要的是，GOBN 混合膜在一系列有机溶剂（如甲醇、乙醇和异丙醇）中显示出令人印象深刻的渗透和染料分子排斥性能特征；性能特征优于GO膜。我们具有稳定微观结构的 GOBN 膜为开发超越渗透率-选择性权衡的高性能多溶剂纳滤膜提供了机会。