Membrane fouling has always been a problem restricting the industrial applications of membrane technology. We synthesized FeOOH/g-C₃N₄ submicron particles exhibiting a visible light response and PAN(polyacrylonitrile)@FeOOH/g-C₃N₄ nanofibers by electrospinning. By coating a dense, smooth and nondestructive layer of chitosan (CS) on the surface of the support layer, a highly hydrophilic CS/PAN@FeOOH/g-C₃N₄ membrane with self-cleaning ability was successfully prepared. The mechanistic studies revealed that the hydroxyl radicals (OH^·) produced by the photo-Fenton reactions are the main agents responsible for the degradation of contaminants. Compared with the use of the CS/PAN@FeOOH/g-C₃N₄ membrane alone, the addition of photo-Fenton reactions could effectively recover the water flux of the membrane polluted by methylene blue and erythromycin, and increase the rejections. In this study, the electrospun membrane was combined with a photo-Fenton reaction for the first time, and this combination provides a new alternative solution for membrane fouling mitigation.

膜结垢一直是限制膜技术在工业上应用的问题。我们通过电纺合成了具有可见光响应的FeOOH / gC ₃ N ₄亚微米颗粒和PAN（聚丙烯腈）@ FeOOH / gC ₃ N ₄纳米纤维。通过在支撑层表面涂覆致密，光滑且无损的壳聚糖（CS）层，成功制备了具有自清洁能力的高亲水性CS / PAN @ FeOOH / gC ₃ N ₄膜。机理研究表明，羟基自由基（OH ^·光芬顿反应产生的）是导致污染物降解的主要物质。与单独使用CS / PAN @ FeOOH / gC ₃ N ₄膜相比，光芬顿反应的添加可以有效地恢复被亚甲基蓝和红霉素污染的膜的水通量，并增加排斥率。在这项研究中，电纺膜首次与光芬顿反应结合，这种结合为缓解膜污染提供了新的替代解决方案。