NOVELTY - Synthesizing neodymium and fluorine composite doped titanium dioxide nanowire, comprises (i) preparing titanium dioxide sol-gel, adding ammonium fluoride, neodymium trinitrate solution into titanium dioxide sol-gel to obtain co-doped titanium oxide sol, carrying out sol-gel-polyacrylamide (PAA) electrophoretic deposition, preparing neodymium/fluorine/titanium dioxide nanowire, and roasting, and (ii) soaking glass slide after aging to obtain neodymium/fluorine co-doped titanium dioxide sol-gel, sol-gel-dipping, and carrying out thermal treatment to obtain transparent titanium dioxide glass film.    USE - The neodymium and fluorine composite doped titanium dioxide nanowire is used for improving and enhancing the efficiency and activity of titanium dioxide in photocatalysis and dye-sensitized battery.    DETAILED DESCRIPTION - Synthesizing neodymium and fluorine composite doped titanium dioxide nanowire, comprises (i) taking tetrabutyl titanate as raw material, absolute ethanol and glacial acetic acid as solvent, acetylacetone as stabilizer to prepare the uniform and stable titanium dioxide sol-gel, adding ammonium fluoride, neodymium trinitrate solution into the titanium dioxide sol-gel to obtain co-doped titanium oxide sol of different ratio, carrying out sol-gel-polyacrylamide (PAA) electrophoretic deposition to obtain composite sol-gel and preparing neodymium/fluorine/titanium dioxide nanowire, then roasting for 2 hours in a muffle furnace of 500 degrees C, where the PAA is partially dissolved by dipping in sodium hydroxide solution (5 wt.%) for half an hour to expose the nanowire array in hole, and (ii) soaking glass slide after aging to obtain neodymium/fluorine-co-doped titanium dioxide sol-gel, soaking for 2 minutes, carrying out sol-gel-dipping method to remove the film, drying completely under the infrared lamp, repeating the process for 4 times to obtain the dry gel film, carrying out thermal treatment at 500 degrees C to obtain transparent titanium dioxide glass film.