Preparation and Photocatalytic Activity of TiO2 Nanotube Array

The high density and well ordered TiO2 nanotube array material was successfully prepared with anodic oxidation method.It was could be application in photocatalytic degradation aniline organic wastewater analog under 254 nm and 365 nm UV irradiation.The results exhibited that the the rate of degradation of aniline reached 99% under the concentration of aniline was 0.33 mmol/L,pH=7,intensity of UV irradiation was 254 nm and reaction time was 120 min.The factors that influence the rate of degradation were also investigated.It is be found the reaction time goes on,higher energy of UV irradiation and add air can increase catalytic activity.Furthermore,Fe3+ was could effectively increased the rate of photocatalytic degradation.