▎ 摘　　要

NOVELTY - Manufacturing titanium dioxide- graphene porous nanofibers, comprises preparing mixed solution by mixing e.g. polymer, acetic acid and graphene oxide, producing titanium dioxide precursor-graphene oxide-polymer nanofibers by electrospinning using obtained mixed solution, hydrolyzing moisture of titanium dioxide precursor-graphene oxide-polymer nanofibers, forming titanium-oxygen-titanium covalent bond by inducing additional nucleation through condensing graphene oxide, and increasing surface area by heat treating obtained titanium dioxide precursor-graphene oxide-polymer nanofibers. USE - The nanofibers are useful in dye-sensitized solar cell. ADVANTAGE - The nanofiber enhances optical conversion efficiency and electronic collection efficiency of the dye-sensitized solar cell, increases adsorption amount of the dye and electron transfer rate due to the introduction of graphene into titanium dioxide nanofibers, scatters light due to the size and structure of the titanium dioxide nanofibers, and improves surface area due to generation of additional nucleation of graphene oxide. DETAILED DESCRIPTION - Manufacturing titanium dioxide- graphene porous nanofibers, comprises (a) preparing a mixed solution by mixing titanium dioxide precursor, polymer, acetic acid and graphene oxide, (b) producing titanium dioxide precursor-graphene oxide-polymer nanofibers by electrospinning using the obtained mixed solution, (c) hydrolyzing moisture of titanium dioxide precursor-graphene oxide-polymer nanofibers and forming titanium-oxygen-titanium covalent bond by inducing additional nucleation through condensation reaction of graphene oxide, and (d) increasing the surface area by heat treating the obtained titanium dioxide precursor-graphene oxide-polymer nanofibers formed with covalent bond and having excellent electron transfer rate and anatase crystallinity.