Figure 3
SEM images of the surface morphology of the TiO 2 :Fe 2 O 3 composite supported on a SiO 2 microsphere layer. SEM images at (a) ×50,000, (b) ×80,000, and (c) EDS mapping distribution of elements of the TiO2:Fe2O3/SiO2 composite: The upper left image corresponds to the mapping region; the upper right corresponds to the oxygen element; the lower left corresponds to the titanium element and the lower right image corresponds to the iron element.