214974.fig.001a
(a)
214974.fig.001b
(b)
214974.fig.001c
(c)
214974.fig.001d
(d)
Figure 1: (a) XRD pattern of Al2O3 powder, (b) morphology of Al2O3 powder, (c) XRD pattern TiO2 powder, and (d) morphology of TiO2 powder.