Research Article

Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films

Figure 4

AFM images of TNAs prepared at different anodizing voltages.
(a) T20
(b) T25
(c) T30
(d) T35
(e) T40
(f) T45