Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Synthesis and Surface Characterization of Transition Metal Doped Mesoporous Silica Catalysts for Decomposition of N2O

N2O 분해를 위한 전이금속이 도핑된 메조포러스 실리카 촉매의 합성과 표면 특성에 관한 연구

  • Lee, Kamp-Du (Center for Green & Fusion Technologies, Keimyung University) ;
  • Noh, Min-Soo (Center for Green & Fusion Technologies, Keimyung University) ;
  • Park, Sang-Won (Center for Green & Fusion Technologies, Keimyung University)
  • 이갑두 (계명대학교 녹색융합기술연구소) ;
  • 노민수 (계명대학교 녹색융합기술연구소) ;
  • 박상원 (계명대학교 녹색융합기술연구소)
  • Received : 2012.01.06
  • Accepted : 2012.06.21
  • Published : 2012.07.31
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Abstract

The purpose of this study is to synthesize transition metal doped mesoporous silica catalyst and to characterize its surface in an attempt to decomposition of $N_2O$. Transition metal used to surface modification were Ru, Pd, Cu and Fe concentration was adjusted to 0.05 M. The prepared mesoporous silica catalysts were characterized by X-ray diffraction, BET surface area, BJH pore size, Scanning Electron Microscopy and X-ray fluorescence. The results of XRD for mesoporous silica catalysts showed typical the hexagonal pore system. BET results showed the mesoporous silica catalysts to have a surface area of 537~973 $m^2/g$ and pore size of 2~4 nm. The well-dispersed particle of mesoporous silica catalysts were observed by SEM, the presence and quantity of transition metal loading to mesoporous surface were detected by XRF. The $N_2O$ decomposition efficiency on mesoporous silica catalysts were as follow: Ru>Pd>Cu>Fe. The results suggest that transition metal doped mesoporous silica is effective catalyst for decomposition of $N_2O$.

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