Photo-degradation of Phenol and Toluene by Using the TiO2-coated Polyethylene Particles

TiO2가 코팅된 Polyethylene 입자를 이용한 페놀과 톨루엔의 광분해

  • 김동주 (강원대학교 화학공학과) ;
  • 최상근 (태창물산 화학사업부 부설연구소) ;
  • 조준형 (강원대학교 제지공학과) ;
  • 김교선 (강원대학교 화학공학과)
  • Published : 2004.08.31

Abstract

The photodegradation of phenol and toluene with the $TiO_2$-coated polyethylene (PE) particles were investigated in the slurry type photocatalytic reactor, changing the $TiO_2$ particle sizes, initial phenol and toluene concentrations, and the oxygen flow rate. The nano-sized $TiO_2$ photocatalyst particles were prepared by the diffusion flame reactor and they were coated onto PE particles by using the hybridization system for the efficient recollection of $TiO_2$-coated particles after photodegradation experiments. The degradation efficiencies of phenol and toluene with the $TiO_2$-coated PE particles were more than 90% after photodegradation of 80 minutes for most cases. The efficiencies of photodegradation with the $TiO_2$-coated PE particles were found to be lower than those by the pure $TiO_2$ particles by 50%, because of the decrease in specific surface area of $TiO_2$ particles in PE particles.

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