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Title
Japanese: 
English:Preparation and photocatalytic activity of Mo-modified Ti-HAp (2) 
Author
Japanese: JiraborvornpongsaNoppakhate, 磯部敏宏, 松下祥子, 藤井孝太郎, 八島正知, 若村正人, Mitsutake Oshikiri, 中島章.  
English: Noppakhate Jiraborvornpongsa, Toshihiro Isobe, Sachiko Matsushita, Kotaro Fujii, Masatomo Yashima, Masato Wakamura, Mitsutake Oshikiri, Akira Nakajima.  
Language English 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page        
Published date Sept. 5, 2018 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English:The 31st Fall Meeting of The Ceramic Society of Japan 
Conference site
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English: 
Abstract Titanium-doped hydroxyapatite (Ti-HAp) powders were modified with CaMoO4 aqueous solution several times. The crystal structure, morphology, light absorption and specific surface area were almost identical after the modification. Then, the photocatalytic activity under UV irradiation was evaluated by the decomposition of gaseous 2-propanol (IPA). The photocatalytic activity of the Mo-modified Ti-HAp increased several times compared with the unmodified Ti-HAp. From ICP analysis, it is suggested that the photocatalytic activity increased with increasing the Mo concentration. The photoluminescence intensity decreased by Mo modification, and a strong signal of Mo(V) was appeared by UV illumination in electron spin resonance spectra of Mo-modified Ti-HAp. These results suggested that the photoinduced electrons can transfer to the MoOx cluster via Ti-hybridized band, which improves a carrier separation efficiency and leads higher photocatalytic activity.

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