Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on $CeO_2/SiO_2$ Composite Powder Synthesis Using Ultrasonic Spray Pyrolysis Method and Effect of Sensory Texture Improvement

  • Lee, Dong-Kyu (Department of Industrial Chemistry, College of Engineering, Chungbuk National University) ;
  • Lee, Jin-Hwa (Department of Industrial Chemistry, College of Engineering, Chungbuk National University)
  • Published : 2005.06.30
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Abstract

The spherical particles of $CeO_2/SiO_2$ composite powder with narrow-size distribution and pure phase particles were synthesized by ultrasonic spray pyrolysis method from aqueous cerium sulfate solution. The resulting composite powder was characterized by X-ray diffraction, scanning electron microscopy, transmittance electron microscopy, in-vitro sun protect factor, and BET surface area analysis. The concentration of cerium sulfate was tested to vary the particle size from $3.40{\times}10^{-3}$ to $1.02{\times}10^{-2}mol/cm^3$ to study concentration effect of starting material. The average particle size from the $3.40{\times}10^{-3}mol/cm^3$ concentration was found to be slightly smaller than that from the $1.02{\times}10^{-2}mol/cm^3$ concentration, because of the relation between the droplet size and the concentration of the starting material solution.

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Cited by

  1. 초음파 분사 열분해 장치에서 제조된 $TiO_2/SiO_2$ 복합 분체의 UV 차단 효과 vol.22, pp.3, 2005, https://doi.org/10.12925/jkocs.2005.22.3.10