17th International Conference on Ion Beam Modification of Materials

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Optical Reactivity Modification of Titanium Oxide coatings on Ceramic filters by Nitrogen ion Implantation

Hyung-Jin Kim* and Jae-Won Park

poster presentation: Tuesday 2010-08-24 05:00 PM - 07:00 PM in section Modification of semiconductors, metals and ceramics
Last modified: 2010-06-02

Abstract


We investigated the modification of optical response properties of titanium dioxide (TiO2) coatings by using ultraviolet-visible absorption spectroscopy and X-ray diffraction. The TiO2 coatings were prepared on ceramic water-purification filters by e-beam evaporation method. These amorphous TiO2 were turned into anatase phase by heat treatment at 700 ℃ for 2 hours. The doping of N atoms into the TiO2 coatings was done by using 70KeV of N+ ion implantation with the dose of 1.0 X 1017 ions/cm2, followed by post-irradiation heat treatment at 550 ℃ for 2 hours. Methylene blue test of TiO2 coatings to solar irradiation showed that the post-evaporation heated TiO2 was photocatalytic and N-doped TiO2 reacted to the visible part of solar irradiation.


Author(s) affiliation:
Hyung-Jin Kim*, KAERI, Republic of Korea
Jae-Won Park, KAERI, Republic of Korea

*presenting author
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