To achieve the effluent standards or water purification, many water-treatment methods including membrane separation have been applied to separate the oily contaminations and clean water. However, most of the membranes displayed a low separation efficiency or poor reusability due to the functional group loss or their surface adhesion of contaminations including oil and biofoulings. Thus, in this work, a hydrophilic crosslinked PVP membrane was facilely prepared via the electrospinning and crosslinking. Crosslinking solves the problem of loss of hydrophilic components in the separation process, and the cPVP-PAN membrane has high hydrophilicity and excellent pollution resistance. The cPVP-PAN membrane showed a high separation flux (20,610 L m⁻² h⁻¹ bar⁻¹) and an excellent separation efficiency (above 97%) for the oil–water mixtures. At the same time, the membrane has good separation capacities for different oil–water mixtures. Importantly, it shows high separation flux of O/W emulsion (569 L m⁻² h⁻¹) only under gravity conditions and a low flux-loss (8.08% after 10-cycle filtration). Furthermore, the membrane could effectively resist the contamination of BSA protein and oil, the flux recovery rates (FRRs) were more than 87.6%. Such membrane shows a broad application prospect in the complex water environmental remediation.

为了达到出水标准或净化水，许多水处理方法包括膜分离已被用于分离油污和净水。然而，由于官能团损失或表面粘附污染物（包括油和生物污垢），大多数膜表现出低分离效率或差的可重复使用性。因此，在这项工作中，通过静电纺丝和交联轻松制备了亲水性交联 PVP 膜。交联解决了分离过程中亲水组分流失的问题，cPVP-PAN膜具有高亲水性和优异的抗污染性。cPVP-PAN 膜显示出高分离通量 (20,610 L m ^-2  h ^-1  bar ^-1) 和出色的油水混合物分离效率（高于 97%）。同时，该膜对不同的油水混合物具有良好的分离能力。重要的是，它仅在重力条件下显示出 O/W 乳液的高分离通量（569 L m ^-2  h ^-1）和低通量损失（10 次循环过滤后为 8.08%）。此外，该膜能有效抵抗BSA蛋白和油类的污染，通量回收率（FRRs）超过87.6%。这种膜在复杂的水环境修复中显示出广阔的应用前景。