PREPARATION METHOD FOR TITANIUM DIOXIDE NANOTUBE, TITANIUM DIOXIDE NANOTUBE, PHOTOELECTROCHEMICAL CELL USING THE SAME, AND HYDROGEN PRODUCTION METHOD USING THE PHOTOELECTROCHEMICAL CELL

摘要

A method for preparing titanium dioxide nanotube is provided to increase the contact area with an electrolyte when the titanium dioxide nanotube is used as a photoelectrode for hydrolysis, thereby increasing the amount of hydrogen generated. A method for preparing titanium dioxide nanotube comprises: a first step of pre-treating titanium foil; a second step of oxidizing the pre-treated titanium foil using anodizing; a third step of washing the oxidized titanium foil and drying it; and a fourth step of manufacturing the dried titanium foil into a nanotube. The titanium foil is 0.25mm in thickness, 45-55mm in width and 45-55mm in length.