Photocatalytic Properties of Size-Controlled Titania Nanotube Arrays
Figure 3
Effects of annealing temperature of the titania nanotube arrays (TNAs) anodized at 20 V for 5 h (a) on the crystallite size of (101) diffraction peak and the rate constant, that is, the slope of (b), and (b) on the change of MB concentration as a (at 365 nm) with ultra-violet irradiation time.