Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Formation Mechanisms of TiO2 Layer by Electrochemical Method

전기화학적 방법에 의한 TiO2 피막의 생성기구

  • O, Han-Jun (Dept of Materials Engineering, Hanseo University) ;
  • Lee, Jong-Ho (Dept.of Chemistry, Hanseo University) ;
  • Jang, Jae-Myeong (Dept. of Advanced Materials Engineering, Kookmin University) ;
  • Ji, Chung-Su (Dept. of Advanced Materials Engineering, Kookmin University)
  • Published : 2002.06.01
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Abstract

A $TiO_2$ film for photocatalyst was prepared by anodic oxidation at 180V in acidic electrolyte and film formation mechanism was studied. The major part of anodic $TiO_2$ film consisted of anatase type structure and surface morphology exhibited a porous cell structure. The thickness growth rate of the oxide film with anodization time revealed two-stage slope corresponds to the surface morphology between anodic films. The growth of pores on cell structure and the growth rate of film with two-stage slope are related to the constant formation rate of the $TiO_2$ layer.

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References

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