Photocatalytic performance of TiO2 nanotube structure based on TiN coating doped with Ag and Cu.

In this paper, TiN, TiN-Ag and TiN-Cu coatings were prepared by multi-arc ion plating. TiO 2 nanotube arrays were constructed on the coatings by anodization reaction at room temperature. Building TiO 2 nanotube arrays on the coating can retain the performance of the hard coating itself and reduce the process of destroying the structure of the TiO 2 nanotubes. Non-metallic N doping and co-doping of metallic Ag, Cu and non-metallic N make the nanotubes catalyzed by visible light. The specific surface area of TiO 2 by changed the anodizing voltage. The results show that the anodic oxidation voltage is 15V and Cu, N co-doped TiO 2 photocatalytic degradation performance is the best. [ABSTRACT FROM AUTHOR]