Two-dimensional Ag/WS₂ hybrid membranes were developed to improve separation performance of WS₂ membrane by in situ self-reduction of AgNO₃ on WS₂ nanoflakes. With the increase of Ag content in Ag/WS₂ hybrid membrane, water flux increased as well because of increased interlayer spacing and more irregular stacking of WS₂ nanoflakes, while the rejection rates for dye molecules decreased. The hybrid membrane containing 6.92 wt% of Ag nanoparticles (Ag/WS₂-2) presented optimal separation performance, exhibiting a EB rejection rate around 90% and a water permeance higher than 500 L/m²·h·bar. Moreover, Ag/WS₂-2 membrane revealed excellent UV-driven self-cleaning ability by photodegradation of contaminant on membrane surface, and its water flux recovery rate was higher than 99.0%. The formation of Ag/WS₂ heterostructure can assist separation of photoinduced electrons and holes by transferring photoinduced electrons to Ag nanoparticles with enhanced photocatalytic activity.

开发了二维Ag/WS ₂杂化膜，通过在WS ₂纳米薄片上原位自还原AgNO ₃来提高WS ₂膜的分离性能。随着Ag/WS ₂杂化膜中Ag含量的增加，由于层间距增加和WS ₂纳米薄片的更不规则堆叠，水通量也增加，而染料分子的截留率降低。含有 6.92 wt% Ag 纳米粒子 (Ag/WS ₂ -2)的混合膜表现出最佳的分离性能，EB 截留率约为 90%，透水性高于 500 L/m ² ·h·bar。此外，Ag/WS ₂-2膜通过光降解膜表面污染物表现出优异的紫外线驱动自清洁能力，其水通量回收率高于99.0%。Ag/WS ₂异质结构的形成可以通过将光生电子转移到具有增强光催化活性的银纳米颗粒来帮助光生电子和空穴的分离。