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http://hdl.handle.net/10087/5837
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Title: | フッ素化アパタイト被覆二酸化チタンにおける合成条件の最適化(テクニカルレポート) |
Other Titles: | Optimization on Synthetic Conditions of Fluoride Apatite Coated Titanium Dioxide in Simulated Body Fluid(Technical report) |
Authors: | 中根, 久志 青木, 早苗 野浪, 亨 田中, 一彦 森, 勝伸 幸本, 和人 刀根, 如人 亀山, 哲也 |
Keywords: | Apatite Titanium dioxide Photocatalyst Fluoride ion |
Issue Date: | 1-Feb-2007 |
Publisher: | 日本セラミックス協会 |
Citation: | 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi. 115(1338), 151-155 (2007) |
Abstract: | An acid resistant fluoroapatite coated titanium dioxide (FAp-TiO_2) was synthesized by adding a fluoride ion (F^-) to hydroxyapatite (HAp), in order to avoid dissolution of the HAp at an acidic atmosphere. In this study, the optimization of synthetic conditions of FAp-TiO_2 was investigated in terms of the amount of the fluorine (F^-) added to the simulated body fluid, the reaction temperature and the time. The addition of F^- to simulated body fluid was performed after coating HAp on the surface of TiO_2 surface. The crystallinity of FAp phase generated on the TiO_2 was strongly affected by changing the reaction conditions. The optimized synthetic conditions of FAp-TiO_2 as photocatalyst were the addition of 0.25mM-0.5mM F^- in the fluid and then the reaction time for 3h at 60℃. The adsorptivity and the photocatalytic activity of the FAp-TiO_2 in the optimum conditions were investigated using the butyric acid and trimethylamine as model solutions. Consequently, the FAp-TiO_2 could obtain higher adsorptivity and photocatalytic activity for trimethylamine, rather than the uncoated TiO_2. |
URI: | http://hdl.handle.net/10087/5837 |
ISSN: | 09145400 |
Appears in Collections: | 学術雑誌論文
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