▎ 摘　　要

NOVELTY - Preparing one-dimensional ordered titanium-base titanium dioxide nano-wire array film with an ultra-high aspect ratio involves soaking the industrial pure titanium in absolute ethyl alcohol or acetone at 50-70 °C, ultrasonic cleaning for 10 minutes, after cleaning, dipping it in etching liquid for micro thinning and surface texturing treatment, soaking the processed titanium foil into a hydrothermal reaction mixed solution containing 1-5 mol/L of sodium hydroxide and graphene quantum dot solution 0.25-1 g/L, and transfer to a stainless steel reactor with polyphenol PPL lining, reacting for 18-24 hours in 0-220 ℃ oven, and cooling to room temperature, taking out, deionized water washing, obtain the intermediate product Na2Ti2O5-H2O nanowire film, soaking the prepared intermediate product Na2Ti2O5-H2O nanowire film into 0.1-1 mol/L of diluted hydrochloric acid or 0.1-1 mol/L diluted nitric acid solution for 5-10 minutes. USE - Method for preparing one-dimensional ordered titanium-base titanium dioxide nano-wire array film with an ultra-high aspect ratio, ADVANTAGE - The method has good light permeability, and a large specific surface area, and has high application value in the photo-catalysis and photo-electric energy conversion field. DETAILED DESCRIPTION - Preparing one-dimensional ordered titanium-base titanium dioxide nano-wire array film with an ultra-high aspect ratio involves soaking the industrial pure titanium in absolute ethyl alcohol or acetone at 50-70 °C, ultrasonic cleaning for 10 minutes, after cleaning, dipping it in etching liquid for micro thinning and surface texturing treatment, soaking the processed titanium foil into a hydrothermal reaction mixed solution containing 1-5 mol/L of sodium hydroxide and graphene quantum dot solution 0.25-1 g/L, and transfer to a stainless steel reactor with polyphenol PPL lining, reacting for 18-24 hours in 0-220 ℃ oven, and cooling to room temperature, taking out, deionized water washing, obtain the intermediate product Na2Ti2O5-H2O nanowire film, soaking the prepared intermediate product Na2Ti2O5-H2O nanowire film into 0.1-1 mol/L of diluted hydrochloric acid or 0.1-1 mol/L diluted nitric acid solution for 5-10 minutes to obtain the intermediate product H2Ti2O5*H2O nanowire film, putting the prepared H2Ti2O5-H2O nanowire film in 500-600 ℃ muffle furnace for air calcining for 1-2 hours naturally cooling to room temperature to obtain the one-dimensional ordered titanium-based titanium dioxide nano-wire array film.