Characterization and Photocatalytic Activity of TiO₂ Nanotube Films Prepared by Anodization

Figure 6

Top view of SEM images of TNT synthesized at different bath temperatures: (a) 10°C, (b) 20°C, (c) 40°C, (d) 50°C, (e) 60°C, and (f) 80°C.

(a)

(b)

(c)

(d)

(e)

(f)