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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/5837

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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