Research Article

Preparation of TiO2 Nanotube Array on the Pure Titanium Surface by Anodization Method and Its Hydrophilicity

Figure 1

SEM topographies of the TiO2 nanotube obtained by different applied voltages: (a) 10 V, (b) 15 V, (c) 20 V, and (d) 40 V.
(a)
(b)
(c)
(d)