Anodic Oxidation Synthesis of One-Dimensional TiO₂ Nanostructures for Photocatalytic and Field Emission Properties

Figure 13

SEM images of TiO₂ nanostructures under different anodizing times, (a) 10 min (b) 30 min, (c) and (d) are the SEM images with the low and high magnifications, respectively, for 60 min.

(a)

(b)

(c)

(d)