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http://dx.doi.org/10.15681/KSWE.2015.31.4.360

Development of Preparation Technology for TiO2 Nanotube Photocatalyst  

Koo, Hyemin (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Lee, Yongho (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Pak, Daewon (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Publication Information
Journal of Korean Society on Water Environment / v.31, no.4, 2015 , pp. 360-366 More about this Journal
Abstract
In this study $TiO_2$ nanotube was grown on Ti by anodic oxidation to be used as a photocatalyst. The growth and formation of $TiO_2$ nanotube was monitored during anodization in ethylene glycol electrolyte by changing voltage and composition of electrolyte. Commercially available titanium plate (purity>99.8%, thickness:1mm) Applied voltage and concentration of $NH_4F$ and $H_2O$ were varied to find the optimum condition. Applied voltage is important to make $TiO_2$ nanotube and the electrolyte containing ethylene glycol, 0.2 wt% $NH_4F$ and 2 vol% $H_2O$ was confirmed to be the optimum conditions for the formation and growth of $TiO_2$ nanotubes.
Keywords
Anodizing; Current density; Photocatalyst; $TiO_2$ nanotube;
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