| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a titanium oxide film-formed member, with which the titanium oxide film exhibiting adhesive strength even to the member having a comparatively large area can be formed uniformly and with good reproducibility by a simple and easy-to-handle constitution and to provide a water treatment apparatus using a photoelectrode obtained by this manufacturing method. <P>SOLUTION: A base body BP consisting of a titanium material is oxidized electrolytically in a solution 12 of 0.1 mol/L nitric acid concentration to oxidize the surface of the base body BP and form the titanium oxide film. The titanium oxide film-formed base body BP is exposed to an atmosphere of 500°C and heat-treated to cause the titanium oxide film on the base body BP to have an anatase structure by thermal oxidation. The base body BP having the titanium oxide film of the anatase structure is used as a first electrode 25a to constitute the water treatment apparatus. The water treatment apparatus has a pair of electrodes 25 including the first electrode 25a in the upper part of a water storage tank 21 for storing the water W to be treated. A bias voltage is applied between the pair of electrodes from a power unit 27. An ultraviolet illumination lamp 28 is arranged above the first electrode 25a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
