Direct Amorphous-structure Analysis : How are Surface/Bulk Structure and Activity of Titania Photocatalyst Particles Changed by Milling?

Chen, Guangyi; Takashima, Mai; Ohtani, Bunsho

Chemistry letters, 2021, 50(4), 644-648

Permalink : https://hdl.handle.net/2115/81525

このアイテムのアクセス数:494件（2026-08-18 03:10 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1246/cl.200825			25

アクセス権	open access
URI	https://hdl.handle.net/2115/81525
タイトル	Direct Amorphous-structure Analysis : How are Surface/Bulk Structure and Activity of Titania Photocatalyst Particles Changed by Milling?
著者	Chen, Guangyi ; Takashima, Mai ; Ohtani, Bunsho
著者名 Chen, Guangyi
著者名 Takashima, Mai
e-Rad_Researcher 80176924 著者名 Ohtani, Bunsho
言語	英語
キーワード	Rutile titania
	Braying-calcination treatment
	Surface amorphization
発行日	2021-04-05
出版者	日本化学会（Chemical Society of Japan）
収録物名	Chemistry letters
巻(号)	50(4)
ページ	644-648
抄録	Changes in surface and bulk structures of rutile titania particles induced by braying up to 10 d and post calcination in air at 773 K were analyzed by reversed double-beam photoacoustic spectroscopy. The observed energy-resolved distribution of electron traps indicated that the surface was amorphized by braying to give rutile-core amorphous-shell structure and the amorphous layer was partly recrystallized by post-calcination leaving grain boundaries in the surface layers, both of which may cause the observed markedly decreased photocatalytic activities.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0366-7022
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1246/cl.200825