Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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An Experimental Study on the Removal of Chlorophenol by TiO2/H2O2/UV Using Continuous flow Reactor

연속흐름식 반응기를 이용한 TiO2/H2O2/UV에 의한 클로로페놀 제거(除去)에 관한 실험적(實驗的) 연구(硏究)

  • 이상협 (경기개발연구원 수질환경연구소) ;
  • 박주석 (서울산업대 환경공학과) ;
  • 박중현 (서울대학교 도시공학과) ;
  • 김동하 (국민대학교 토목환경공학부)
  • Published : 1998.06.15
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Abstract

The degradation efficiency of chlorophenolic compounds in $TiO_2/H_2O_2$ combined system was compared with that of in $TiO_2$ sole system. As a result, the addition of hydrogen peroxide in photocatalytic oxidation reaction greatly enhanced the degradation efficiency of chlorophenolic compounds due to the availability of the hydroxyl radical formed on the $TiO_2$ surface. The hydrogen peroxide under UV illumination produces hydroxyl radicals that appear to be another source of hydroxyl radical formation. These results indicated the $TiO_2/H_2O_2$ combined system shows higher degradation efficiency than the $TiO_2$ sole system. Compared to another oxidation reaction, hydrogen peroxide assisted photocatalytic oxidation is more promising in practical aspect.

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