Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Synthesis and surface characterization of mesoporous carbon for the adsorption of methane gas

메탄가스 흡착을 위한 메조포러스 카본 합성과 표면 특성 연구

  • Park, Sang-Won (Department of Environmental Science, Keimyung University) ;
  • Lee, Kamp-Du (Department of Environmental Science, Keimyung University) ;
  • Noh, Min-Soo (Department of Environmental Science, Keimyung University)
  • 박상원 (계명대학교 환경과학과) ;
  • 이갑두 (계명대학교 환경과학과) ;
  • 노민수 (계명대학교 환경과학과)
  • Received : 2012.12.11
  • Accepted : 2013.04.04
  • Published : 2013.07.31
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Abstract

This study was designed to synthesize mesoporous carbon, porous carbonic material and to characterize its surface in an attempt to adsorption methane gas($CH_4$). Synthesis of mesoporous carbon was carried out under two steps ; 1. forming a RF-silica complex with a mold using CTMABr, a surfactant, and TEOS, raw material of silica, and 2. eliminating silica through carbonization and HF treatment. The mesoporous carbon was synthesized under various conditions of synthesis time and calcination. Eight different types of mesoporous carbon, which were designated as MC1, MC2, MC3, MC4, MCT1, MCT2, MCT3, and MCT4, were prepared depending upon preparation conditions. The analysis of mesoporous carbon characteristics showed that the calcination of silica stabilized the mixed structure of silica and carbonic complex, and made the particle uniform. The results also showed that hydrothermal synthesis time did not have a strong influence on the size of pore. The bigger specific surface area was obtained as the hydrothermal synthesis time was extended. However, the specific surface area was getting smaller again after a certain period of time. In adsorption experiments, $CH_4$ was used as adsorbate. For the case of $CH_4$, MCT3 showed the highest adsorption efficiency.

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References

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