Fig. 3From: Effect of Pt Nanoparticles on the Photocatalytic Activity of ZnO NanofibersSTEM and 2D elemental chemical EDX map of Pt-ZnO nanofibers. Z-contrast STEM image of a cross section of the sample showing Pt nanoparticles and ZnO nanofibers (brighter contrast regions came from Pt particles) (a) and the corresponding 2D elemental chemical EDX map showing Zn (blue), Pt (yellow), and Si (green) (b)Back to article page