Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Preparation of C Doped TiO2 Photocatalyst Activating to Visible Irradiation and Investigation of Its Photocatalytic Activity

유성 볼밀법을 이용한 탄소 도핑 가시광 활성 TiO2 광촉매 제조 및 이의 특성 평가

  • Yeo, In-Chul (Department of Mechanical Engineering, Incheon University) ;
  • Kang, In-Cheol (Department of Nano-Surface Technology, SongdoTechnopark)
  • 여인철 (인천대학교 기계시스템 공학부) ;
  • 강인철 ((재)송도테크노파크, 나노표면기술실)
  • Received : 2010.06.09
  • Accepted : 2010.07.02
  • Published : 2010.08.28
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Abstract

A carbon doped $TiO_2$ (C-$TiO_2$) photocatalyst, which shows good photocatalytic activity to Ultraviolet irradiation and visible irradiation, was successfully prepared by co-grinding of $TiO_2$ with ethanol or Activated Carbon(C), followed by heat treatment at $200^{\circ}C$ in air for 60 min. Ethanol and C were used as a representative agent of liquid and solid for carbon doping. Their influence on improving photocatalytic ability and carbon doping degree was studied with degradation of methyl orange and XPS analysis. The product prepared by co-grinding of $TiO_2$ with Ethanol had Ti-C and C-O chemical bonds and showed higher photocatalytic activity than the product prepared by co-grinding of $TiO_2$ with C, where just C-O chemical bond existed. As a result, mechanochemical route is useful to prepare a carbon doped $TiO_2$ photocatalyst activating to visible irradiation, where the solid-liquid operation is more effective than solid-solid operation to obtain a carbon doped $TiO_2$.

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References

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