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화학기상응축 공정으로 제조한 TiO2 나노분말의 광촉매 특성 KCI 등재

Photocatalytic Properties of TiO2 Nanopowder Synthesized by Chemical Vapor Condensation Process

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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

nanopowder was synthesized by chemical vapor condensation (CVC) process and its photocatalytic property depending on microstructure was considered in terns of decomposition rate of organic compound. In order to control microstructure of nanopowder such as particle size and degree of agglomeration, precursor flow rate representing number concentration was changed as a process variable. In TEM observation, spherical nanoparticles with average size of 20 nm showed gradual increases in particle size and degree of agglomeration with increase of precursor flow rate. Also decomposition rate of organic compound increased with decreasing precursor flow rate. Thus, it was concluded that photocatalytic property was enhanced by targe surface area of disperse nanoparticles synthesized at lower precursor flow rate condition in CVC process

저자
  • 임성순
  • 남희영
  • 윤성희
  • 이창우
  • 유지훈
  • 이재성