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http://dx.doi.org/10.3740/MRSK.2002.12.6.482

Formation Mechanisms of TiO2 Layer by Electrochemical Method  

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)
Publication Information
Korean Journal of Materials Research / v.12, no.6, 2002 , pp. 482-487 More about this Journal
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.
Keywords
anodic oxidation; $TiO_2$; porous cell structure; photocatalyst; anatase;
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