Preparation and performance of CeO2 hollow spheres and nanoparticles
来源期刊：Journal of Rare Earths2016年第3期
论文作者：张问问 陈东辉
文章页码：295 - 299
摘 要：CeO2 hollow spheres were synthesized by polystryrene sphere（PS） templates and CeO2 nanoparticles were prepared by a facile method. The as-obtained products were characterized by scanning electron microscopy（SEM）, N2 adsorption-desorption, X-ray diffraction（XRD）, Fourier transform infrared spectroscopy（FTIR） and UV-vis diffuse reflectance spectra. The results showed that the structure of the obtained CeO2 hollow spheres was hollow microsphere with a diameter of 380 nm and the average particle size of CeO2 nanoparticles was about 1700 nm. The two samples’ Brunauer-Emmett-Teller（BET） surface area was 67.1 and 37.2 m2/g. The CeO2 hollow spheres had a better performance than nanoparticles at UV-shielding because of higher surface area and the structure of hollow sphere.
张问问，陈东辉
College of Chemical and Environmental Engineering, Shanghai Institute of Technology
摘 要：CeO2 hollow spheres were synthesized by polystryrene sphere（PS） templates and CeO2 nanoparticles were prepared by a facile method. The as-obtained products were characterized by scanning electron microscopy（SEM）, N2 adsorption-desorption, X-ray diffraction（XRD）, Fourier transform infrared spectroscopy（FTIR） and UV-vis diffuse reflectance spectra. The results showed that the structure of the obtained CeO2 hollow spheres was hollow microsphere with a diameter of 380 nm and the average particle size of CeO2 nanoparticles was about 1700 nm. The two samples’ Brunauer-Emmett-Teller（BET） surface area was 67.1 and 37.2 m2/g. The CeO2 hollow spheres had a better performance than nanoparticles at UV-shielding because of higher surface area and the structure of hollow sphere.
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