802318.fig.001a
(a)
802318.fig.001b
(b)
802318.fig.001c
(c)
802318.fig.001d
(d)
802318.fig.001e
(e)
Figure 1: SEM images of 100 nm TiO2 nanotubes with (a) 0.05 M, (b) 0.1 M, and (c) 0.2 M of DEA treatment. (d) TEM and (e) high-magnification TEM images of 100 nm TiO2 nanotubes with 0.1 M DEA treatment.