Figure 3.

Schematic model, top view FE-SEM image and FTIR spectrum of ZnO nanoflakes after chemisorptions. (a) Schematic model of SA interaction with ZnO nanoflakes by grafting -COOH group onto the surface, (b)(c) top viewFE-SEM image and FTIR spectrum of ZnO nanoflakes after chemisorption of SA molecules.