Nanofiber with photocatalytic self-cleaning and self-disinfecting functions and preparation method thereof

The invention discloses nanofiber with photocatalytic self-cleaning and self-disinfecting functions and a preparation method thereof. A nanomaterial is obtained by conducting electrostatic spinning on a solution of cellulose acetate, nanocrystalline titanium dioxide and silver nanowires, and comprises a core layer and a sheath film layer; the core layer comprises the cellulose acetate; the core layer is coated with the sheath film layer; and the nano titanium dioxide and the silver nanowires are dispersed in the sheath film layer. According to the nanofiber and the preparation method thereof provided by the embodiments of the invention, the cellulose acetate is used as the core layer for spinning, and the photocatalyst, namely the nano titanium dioxide and a small amount of the disinfection component, namely the silver nanowires are dispersed in the sheath film layer, wherein the titanium dioxide has excellent performance in interface charge transfer rate and near-band-gap light absorption and has good perfor