High Concentrated Toluene Decomposition by Non-thermal Plasma-Photocatalytic (Mn-Ti-MCM-41) Hybrid System

상온 방전 플라즈마-광촉매(Mn-Ti-MCM-41) 복합 시스템에 놓인 고농도 톨루엔의 분해성능

  • Ban, Ji-Young (College of Environment and Applied Chemistry, Kyung Hee University) ;
  • Son, Yeon-Hee (College of Environment and Applied Chemistry, Kyung Hee University) ;
  • Lee, Sung-Chul (College of Environment and Applied Chemistry, Kyung Hee University) ;
  • Kang, Misook (Industrial Liaison Research Institute, Kyung Hee University) ;
  • Choung, Suk-Jin (College of Environment and Applied Chemistry, Kyung Hee University) ;
  • Sung, Joon-Yong (Yonsei Center for Clean Technology, Yonsei University)
  • 반지영 (경희대학교 환경.응용화학대학) ;
  • 손연희 (경희대학교 환경.응용화학대학) ;
  • 이성철 (경희대학교 환경.응용화학대학) ;
  • 강미숙 (경희대학교 산학협력기술연구원) ;
  • 정석진 (경희대학교 환경.응용화학대학) ;
  • 성준용 (연세대학교 CT 연구단)
  • Received : 2005.01.31
  • Accepted : 2005.02.28
  • Published : 2005.06.10


This study focused on the decomposition of toluene in a plasma-photocatalytic hybrid system. Hexagonally packed meso-structured Mn-titanosilicates (Mn-Ti-MCM-41), as the photocatalysts, have been prepared by the hydrothermal method. The physical properties of the photocatalysts were characterized using XRD, XPS, TEM, BET/ICP, and $NH_3$/Toluene-TPD. Experiments were carried out at the applied voltage of 9.0 kV and at room temperature of $20^{\circ}C$. In the plasma only system, the activity of the toluene decomposition was higher than that in the photocatalytic system. However, the amount of by-products, such as phenol, $C_2{\sim}C_4$ alkene, was also increased in the plasma only system. However, the by-products decreased remarkably in a plasma-photocatalytic hybrid system. When Mn5mol%-Ti-MCM-41 was used as a photocatalyst in a plasma-photocatalytic hybrid system, the $CO_2$ selectivity in products was increased dramatically compared to other catalysts. It was confirmed that a plasma-photocatalytic hybrid system was better for toluene decomposition compared to photocatalytic and plasma only systems.


Supported by : 학술진흥재단


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