Abstract
A new β phase Ti-29Nb-13Ta-4.6Zr (TNTZ) alloy was developed for biomedical materials. Since TNTZ alloy is bioinert, several studies have been reported grow the bioactive oxide layer on TNTZ surface. In this study, the nanotube arrays were fabricated on TNTZ surface by a anodization, and their structural and crystallographic were investigated. The crystallized TNTZO nanotube arrays in anatase phase were obtained after annealing at 500℃ for 3h though as-anodized TNTZO was amorphous. The photocatalytic activity of the crystallized TNTZO nanotubes was evaluated by degradation of gaseous acetaldehyde in air under UV light irradiation, and degradation of gaseous acetaldehyde was observed.
