Synthesis of TiO₂/Pd and TiO₂/PdO Hollow Spheres and Their Visible Light Photocatalytic Activity

Figure 2

FESEM images of (a)TiO₂, (b)TiO₂-T, (c)TiO₂/Pd, and (d)TiO₂/PdO.

(a)

(b)

(c)

(d)