Rapid low-temperature synthesis of porous ZnO nanoparticle film by self-hydrolysis technique

Porous nano-scale ZnO particle film was rapidly synthesized from a mixing solution of zinc acetate dihydrate - acetone at about 90°C. The crystal structure and morphology were clarified by the X-ray diffraction and a field emission scanning electron microscope. The evaporation of higher vapor pressure acetone resulted in the hydrolysis of zinc salt in itself crystalline water. Three morphologies of ZnO (dispersed nanoparticles, dispersed bread chip-shaped particles and flower-like bread chip-shaped assemblies) were observed.