TiO_2/アパタイト担持光触媒の作製と性質(<特集>セラミック材料)

概要

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A novel photocatalyst was fabricated by coating TiO_2 and successively apatite on a fibrous ceramic body through the following procedure. At the first step, TiO_2 from Ti[(CH_3)_2CHO]_4 was deposited on the fibrous body by means of the sol-gel method (TiO_2 coated photocatalyst). Then, the resulting TiO_2 coated photocatalyst was soaked for 24h at 37℃ in a simulated body fluid with the phosphate ion concentration much higher than that in the human body plasma. By this soaking treatment, apatite crystals were formed on this TiO_2 coated photocatalyst (TiO_2 and apatite coated photocatalyst). It was observed that the composited coating of apatite improved the adsorption ability of TiO_2 coated photocatalyst for colon bacillus, acetaldehyde and methylene blue, and eventually, the TiO_2 and apatite coated photocatalyst could effectively decompose them.
社団法人日本材料学会の論文
2002-06-15