Organic solvent nanofiltration (OSN) is a molecular separation method which offers a sustainable and reliable solution compared to the conventional energy-intensive separation processes. OSN can be successfully applied to several applications, such as food, pharmaceutical, petrochemical and fine-chemical industries. Current research on OSN membranes mainly focuses on polymeric materials due to the ease of processing, controlled formation of pores, lower fabrication costs and higher flexibility as compared with inorganic materials. However, there are some limitations for the polymeric membranes which can be partially surmounted by adding nanoscale fillers into the polymeric matrix to make nanocomposite membranes. This review aims to comprehensively evaluate and report the advances in nanocomposite membranes prepared by using either different nanoscale fillers or various fabrication methods for OSN applications. Nanoparticles that will be discussed include metal-organic framework, graphene oxide, carbon nanotubes, silica, titanium, gold, zeolite and other fillers. The incorporation of these nanoscale fillers into the polymeric membranes can positively influence the mechanical strength, chemical and thermal stability, hydrophilicity, solute selectivity and solvent permeance. This study may provide helpful insights to develop next-generation of OSN membranes for years to come.

有机溶剂纳米过滤（OSN）是一种分子分离方法，与常规的高能耗分离方法相比，它提供了一种可持续且可靠的解决方案。OSN可以成功应用于多种应用，例如食品，制药，石化和精细化工行业。OSN膜的当前研究主要集中在聚合物材料上，因为与无机材料相比，其易于加工，受控的孔形成，较低的制造成本和较高的柔韧性。然而，对于聚合物膜存在一些限制，通过将纳米级填料添加到聚合物基质中以制备纳米复合膜可以部分克服该限制。这篇综述旨在全面评估和报告通过使用不同的纳米级填料或用于OSN应用的各种制造方法制备的纳米复合膜的进展。将要讨论的纳米颗粒包括金属有机骨架，氧化石墨烯，碳纳米管，二氧化硅，钛，金，沸石和其他填料。将这些纳米级填料掺入聚合物膜中可以积极地影响机械强度，化学和热稳定性，亲水性，溶质选择性和溶剂渗透性。这项研究可能会为今后几年开发下一代OSN膜提供有用的见解。金，沸石和其他填料。将这些纳米级填料结合到聚合物膜中可以积极地影响机械强度，化学和热稳定性，亲水性，溶质选择性和溶剂渗透性。这项研究可能会为今后几年开发下一代OSN膜提供有益的见解。金，沸石和其他填料。将这些纳米级填料掺入聚合物膜中可以积极地影响机械强度，化学和热稳定性，亲水性，溶质选择性和溶剂渗透性。这项研究可能会为今后几年开发下一代OSN膜提供有用的见解。