Photocatalytic effect for the pitch-coated TiO2

Pitch 코팅된 TiO2에 대한 광촉매 효과

  • Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Bae, Jang-Soon (Department of Industrial Chemistry, Dankook University) ;
  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
  • 진명량 (한서대학교, 신소재공학과) ;
  • 배장순 (단국대학교, 공업화학과) ;
  • 오원춘 (한서대학교, 신소재공학과)
  • Received : 2006.06.17
  • Accepted : 2006.08.01
  • Published : 2006.08.28


Pitch-coated anatase $TiO_2$ typed was prepared by $CCl_4$ solvent mixing method with different mixing ratios. Since the carbon layers derived from pitch on the $TiO_2$ particles were porous, the pitch-coated $TiO_2$ sample series showed a good adsorptivity and photo decomposition activity. The BET surface area depends on the pitch contents, which was made by changing the mixing ratios of the pitch with the raw $TiO_2$. The SEM results present to the characterization of porous texture on the pitch-coated $TiO_2$ sample and pitch distributions on the surfaces for all the materials used. From XRD data, a weak and broad carbon peak of graphene with pristine anatase peaks were observed in the X-ray diffraction patterns for the pitch-coated $TiO_2$. The EDX spectra show the presence of C, O and S with strong Ti peaks. Most of these samples are richer in carbon and major Ti metal than any other elements. Finally, the excellent photocatalytic activity of pitchcoated $TiO_2$ with Uv/Vis spectra between absorbance and time could be attributed to the homogeneous coated pitch on the external surface by $CCl_4$ solvent method.


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