Enhancement of Photocatalytic Activity of ZnO/SiO₂ by Nanosized Pt for Photocatalytic Degradation of Phenol in Wastewater

Figure 4

Size distribution diagrams of Pt metal obtained from the TEM images of the Img: Pt-ZnO-SiO₂ (a) and PAD: Pt-ZnO-SiO₂ (b) catalysts.

(a)

(b)