Figure 3From: Flower-like ZnO-Ag2O composites: precipitation synthesis and photocatalytic activitySEM images of pure ZnO, pure Ag 2 O, and ZnO-Ag 2 O composite. (a) Low-magnification SEM image of pure ZnO, (b) high-magnification SEM image of pure ZnO, and (c, d) typical images of pure Ag2O and ZnO-Ag2O composite.Back to article page