Research Article

The Influence of Lead Concentration on Photocatalytic Reduction of Pb(II) Ions Assisted by Cu-TiO2 Nanotubes

Figure 1

FESEM morphology of Cu-TiO2 nanotubes prepared at (a) room temperature, (b) 60°C, and (c) 80°C in an optimize 0.6 M copper(II) nitrate trihydrate [Cu(NO3)2·3H2O] solution for 1 h.
839106.fig.001a
(a)
839106.fig.001b
(b)
839106.fig.001c
(c)