Mubarak Mahmoud F, Bahtiti Nawal, Abu-Rayyan Ahmed, Ragab Ahmed H, Gumaah Najla F, El-Sayed El-Sayed M, Ali H S, Ebada A
Petrolum Applications Department, Egyptian Petroleum Research Institute (EPRI), Ahmed El-Zomer, Nasr City, Cairo, Egypt.
Core Lab Center, Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El Zomorst. Nasr City, Cairo, 11727, Egypt.
Sci Rep. 2025 Sep 2;15(1):32292. doi: 10.1038/s41598-025-12041-3.
An innovative composite membrane was developed by combining polyvinylidene fluoride (PVDF) with graphene oxide (GO), titania (TiO), and silica (SiO) nanoparticles (PGTS). This innovative membrane was created using solution casting and electrospinning techniques to enhance its surface area and hydrophilic characteristics, while incorporating photocatalytic properties for light-induced oil decomposition. The membrane structure was examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). The effectiveness of the membrane was measured in terms of the oil rejection and fouling resistance under continuous cross-flow conditions in a laboratory-scale filtration setup. The PGTS membrane demonstrated exceptional performance, surpassing both pure PVDF and commercial membranes, with a 99% oil rejection rate and 8% flux increase. Notably, the membrane maintained high emulsion separation efficiency even after 100 h of uninterrupted operation.The synergistic interaction between the PVDF matrix and the surface-functionalized nanomaterials-specifically GO, TiO, and SiO-enhanced the membrane's separation performance and resistance to fouling. Due to its high selectivity, permeability, and excellent antifouling characteristics, this superhydrophilic nanocomposite membrane demonstrates strong potential for the efficient treatment of oily wastewater from both industrial and domestic sources.
通过将聚偏氟乙烯（PVDF）与氧化石墨烯（GO）、二氧化钛（TiO）和二氧化硅（SiO）纳米颗粒（PGTS）相结合，开发出了一种创新的复合膜。这种创新的膜是采用溶液浇铸和静电纺丝技术制备的，以增加其表面积和亲水特性，同时赋予光催化性能用于光诱导油分解。通过扫描电子显微镜（SEM）、X射线衍射（XRD）和傅里叶变换红外光谱（FT-IR）对膜结构进行了检测。在实验室规模的过滤装置中，在连续错流条件下，根据除油率和抗污染性来衡量膜的有效性。PGTS膜表现出卓越的性能，超过了纯PVDF膜和商业膜，除油率达99%，通量增加了8%。值得注意的是，即使在连续运行100小时后，该膜仍保持着较高的乳液分离效率。PVDF基体与表面功能化纳米材料（特别是GO、TiO和SiO）之间的协同相互作用提高了膜的分离性能和抗污染能力。由于其高选择性、高渗透性和优异的抗污染特性，这种超亲水纳米复合膜在高效处理工业和生活来源的含油废水方面显示出强大的潜力。
