Abstract
In this work, TiO_2/Ti composite films were fabricated by 2-setp MCT and the following high temperature oxidation. The microstructures of the surface and cross-section were observed by SEM. Photocatalytic/antibacterial activity of the composite films treated by ultrasonic cleaning to increase the performance reliability was examined. The results revealed that 2-setp MCT is a simple and useful process to prepare TiO_2/Ti composite films on alumina balls. Relative high photocatalytic activity was still kept after ultrasonic cleaning. The prepared TiO_2/Ti composite films showed high photocatalytic activity in the degradation of methylene blue solution. It is obvious that TiO_2/Ti composite films have antibacterial activity under UV irradiation.