| 摘要 |
PROBLEM TO BE SOLVED: To provide a method by which a nanotube-shaped titanium oxide structure can be easily manufactured without using an organic solvent/surfactant or a high concentration alkali with a danger. SOLUTION: The method for manufacturing the titanium oxide nanotube structure comprises subjecting a titanate to hydrothermal treatment. As the titanate, a titanate having a layered structure is preferably used, and above all, sodium titanate is more preferably used. It is preferable to perform the hydrothermal treatment in the presence of only water in an autoclave as the hydrothermal treatment conditions. The preferable hydrothermal treatment temperature is within a range of 120-200°C, and the preferable hydrothermal treatment time is≥120 h. The obtained titanium oxide nanotube structure is expected to be used in a wide range of fields as photoelectrodes of dye-sensitive solar cells, photocatalysts, optical/electronic materials or the like because it has a large specific surface area. COPYRIGHT: (C)2006,JPO&NCIPI
|
