【Abstract】 ZnO nano-powders was prepared on the surface of exfoliated kaolinite（with the precursor solution of（ZnAc₂·2H₂O） and ammonia） via microwave heating hydrolysis method,the nanocrystalline ZnO was（characterized） by using XRD,FTIR,TEM and their formation mechanism was proposed.The results indicate that the products are composed of hexagonal-phased ZnO.The morphology of ZnO is rod-like without exfoliated kaolinite（length is 100-200 nm,diameter is 50-80 nm） as well as is cluster whisker-like in the presence of exfoliated kaolinite（length is 200-350 nm,diameter is 40-60 nm）.The infrared absorption of the latter was enhanced apparently.The formation mechanism of the nanocrystalline ZnO synthesized by this method was also suggested.更多还原