Nanofiber membrane material as well as preparation method and application thereof

The invention discloses a nanofiber membrane material as well as a preparation method and an application thereof. A polyvinylidene fluoride/polytetrafluoroethylene/titanium dioxide nanofiber membrane material is prepared by taking a mixed solution of polyvinylidene fluoride as a spinning stock solution and adopting an electrostatic spinning and hydrothermal reaction process. According to the preparation method disclosed by the invention, hydrophobic TiO2 nanoparticles can be grown on the fiber membrane only through a one-step hydrothermal process, and polytetrafluoroethylene particles can be fixed on the membrane, so that the hydrophobicity and chemical stability of the membrane are further improved. The nanofiber membrane material prepared by the preparation method disclosed by the invention not only can efficiently separate water-in-oil emulsion, but also can photodegrade oil-soluble dye, and has extremely high application potential in the field of sewage treatment. 本发明公开了一种纳米纤维膜材料、制备方法及其应用。以聚偏二氟乙烯的混合溶液为纺丝原