2016 年 124 巻 5 号 p. 495-499
Titanate nanotubes are tubular nano materials for variety of applications. However, because of their large structural aspect ratio, it has been difficult to control aggregation and orientation states for further functionalization. In this review article, summary of our recent achievement on the preparation and functionalization of titanate nanotubes with controlled aggregation or orientations. Titanate nanotube films in which nanotubes oriented to perpendicular to the substrate show adhesive superhydrophobility. On the other hand, hierarchically porous titanate nanotube monoliths are prepared under hydrothermal treatment of condensed titania emulsion which show a large capacity and fast ion exchange capabilities. These achievements clearly indicate that the titanate nanotubes with controlled aggregation/orientation exhibit great potentiality as highly functional materials.
