Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Preparation of TiO2:Fe,V nanoparticles by flame spray pyrolysis and photocatalytic degradation of VOCs

화염분무열분해법을 이용한 TiO2:Fe,V 나노분말의 제조 및 VOCs 분해 특성

  • Chang, Han Kwon (Nano-materials Group, Korea Institute of Geoscience and Mineral Resources) ;
  • Jang, Hee Dong (Nano-materials Group, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, Tae-Oh (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Kim, Sun Kyung (Nano-materials Group, Korea Institute of Geoscience and Mineral Resources) ;
  • Choi, Jin Hoon (Department of Chemical and Biomolecular Engineering, Sogang University)
  • 장한권 (한국지질자원연구원, 나노물질연구팀) ;
  • 장희동 (한국지질자원연구원, 나노물질연구팀) ;
  • 김태오 (금오공과대학교, 환경공학과) ;
  • 김선경 (한국지질자원연구원, 나노물질연구팀) ;
  • 최진훈 (서강대학교 화공생명공학과)
  • Published : 2009.03.31
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Abstract

Fe- and V-doped titanium dioxide nanoparticles consisting of spherical primary nanoparticles were synthesized from a mixed liquid precursor by using the flame spray pyrolysis. The effects of dopant concentration on the powder properties such as morphology, crystal structure, and light adsorption were analyzed by TEM, XRD, and UV-Vis spectrophotometer, respectively. As the V/Ti molar ratio increased, pure anatase particles were synthesized. On the contrary, rutile phase particles were synthesized as the Fe/Ti ratio increased. Photocatalytic property of as-prepared $TiO_2:Fe,V$ nanoparticles was investigated by measuring the removal efficiency for volatile organic compounds (VOCs) under the irradiation of visible light. After 2 hrs under visible light, the removal efficiencies of benzene, p-xylene, ethylbenzene, and toluene were reached to 21.9%, 21.4%, 19.8% and 17.6% respectively.

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