The 31st Fall Meeting of The Ceramic Society of Japan
開催地
和文:
英文:
アブストラクト
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.
各種検索
サポート
ヘルプ