Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Preparation of CeO2 Nanoparticles using Flame Spray Pyrolysis

화염분무열분해법을 이용한 이산화세륨 나노분말 제조

  • Kim, Sun Kyung (Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Park, Su-Ryeon (Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Chang, Hankwon (Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Jang, Hee Dong (Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources)
  • 김선경 (한국지질자원연구원 희유자원활용연구실) ;
  • 박수련 (한국지질자원연구원 희유자원활용연구실) ;
  • 장한권 (한국지질자원연구원 희유자원활용연구실) ;
  • 장희동 (한국지질자원연구원 희유자원활용연구실)
  • Received : 2016.04.22
  • Accepted : 2016.06.24
  • Published : 2016.06.30
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Abstract

$CeO_2$ nanoparticles were prepared by a flame spray pyrolysis from aqueous solution of cerium nitrate. The morphology, structure crystallinity and specific surface area of as-prepared nanoparticles were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and Brunauer-Emmett-Telle (BET). The $CeO_2$ nanoparticles about 5 nm in diameter showed a cubic fluorite structure and polyhedral morphology. The average particle size increased as the cerium nitrate concentration increased. UV absorption performance of the as-prepared nanoparticles was measured by UV-visible spectroscopy. UV absorption of $CeO_2$ nanoparticles was more effective than that of commercial $TiO_2$ nanoparticles. Effect of dopants such as Ti and Zn to $CeO_2$ nanoparticles on UV absorption properties was also investigated. In case of $Ti/CeO_2$, and $Zn/CeO_2$ nanoparticles, they showed a little higher UV absorption values compared with $CeO_2$ nanoparticles. The as-prepared nanoparticles can be promising materials with high UV absorption value.

Keywords

References

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