Study on Preparation and Formation Mechanisms of Al2O3 Nanoparticles by Reverse Microemulsion
尹良果 Liu Suqin Li Chaojian 黄可龙
Study on Preparation and Formation Mechanisms of Al2O3 Nanoparticles by Reverse Microemulsion
Study on Preparation and Formation Mechanisms of Al2O3 Nanoparticles by Reverse Microemulsion
摘要
Al2O3 nanoparticle have been prepared by polyethylene glycol octylphenyl ether(Triton X-100)/n-butyl alcohol/cyclohexane/water W/O reverse microemulsion. The result of thermal analysis of the precursor products showed the proper calcination temperature was 1150 ℃. Structures and morphologies of Al2O3 nanoparticles were characterized by X-ray powder diffraction(XRD)、Transmission electron microscope(TEM) and US-VIS spectra. The influences of molar ratio of water to surfactant (ωo), calcination temperature and other key factors on the morphologies and the sizes of the Al2O3 nanoparticles were studied. The results show that we have successfully solve the agglomeration of nanoparticles. The formation mechanisms of Al2O3 nanoparticles in the reverse microemulsion were also discussed.
评论