분석과학 (Analytical Science and Technology)

  • 제19권5호
  • /
  • Pages.376-382
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  • 2006
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  • 1225-0163(pISSN)
  • /
  • 2288-8985(eISSN)
한국분석과학회 (The Korean Society of Analytical Sciences)
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Characterization of composite prepared with different mixing ratios of TiO2 to activated carbon and their photocatalytic activity

  • Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Bae, Jang-Soon (Department of Industrial Chemistry, Dankook University) ;
  • Ko, Young-Shin (Department of Science Education, Seoul National University of Education) ;
  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
  • 투고 : 2006.08.10
  • 심사 : 2006.09.06
  • 발행 : 2006.10.28
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초록

In this work, pitch/activated carbon/$TiO_2$ composite were prepared by $CCl_4$ solvent method with different mixing ratios. The BET surface area of pitch/activated carbon/$TiO_2$ composite has a significantly increase with increasing activated carbon content in pitch/activated carbon/$TiO_2$ composite. The surface structure and elemental compositions of the composite were studied by SEM and EDX, respectively. The SEM results were presented to the characterization of porous texture on the pitch/activated carbon/$TiO_2$ composite. And EDX data was shown the presence of C, O, S, Ti and other elements. The structural properties of the composite were studied in XRD measurements. The $TiO_2$ crystal phases of the pitch/activated carbon/$TiO_2$ composite had lots of rutile-type structure which transforms from anatase-type with a little of anatase-type structure. The photocatalytic activities of the composite were evaluated using a photo-decomposition method under UV lamp. The pitch/activated carbon/$TiO_2$ composites were observed better photocatalytic activity than that of pristine $TiO_2$.

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