Light intensity dependence of the action spectra of photocatalytic reactions with anatase titanium(IV) oxide

Torimoto, Tsukasa; Aburakawa, Yousuke; Kawahara, Yoichiro et al.

Chemical Physics Letters, 2004, 392(1-3), 220-224

Permalink : https://hdl.handle.net/2115/14644

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アクセス権
open access
URI
https://hdl.handle.net/2115/14644
タイトル
Light intensity dependence of the action spectra of photocatalytic reactions with anatase titanium(IV) oxide
著者
Torimoto, Tsukasa ; Aburakawa, Yousuke ; Kawahara, Yoichiro ; Ikeda, Shigeru ; Ohtani, Bunsho
著者名
Torimoto, Tsukasa
著者名
Aburakawa, Yousuke
著者名
Kawahara, Yoichiro
著者名
Ikeda, Shigeru
e-Rad_Researcher
80176924
著者名
Ohtani, Bunsho
言語
英語
発行日
2004-07-01
出版者
Elsevier B.V.
収録物名
Chemical Physics Letters
巻(号)
392(1-3)
ページ
220-224
抄録
Light intensity dependence of action spectra of photocatalytic reactions was investigated using anatase single-phase titanium(IV) oxide powders as photocatalysts. The action spectra normalized at 350 nm were not changed in methanol dehydrogenation with the range of intensities of ca. 0.1–10 mW cm−2, while those for acetic acid decomposition were red-shifted with increase in light intensity. The apparent quantum yield of the former was almost independent of the irradiation intensity, but that of the latter was declined with increase in light intensity, the degree being considerably enhanced with the irradiation at shorter wavelength when the light intensity was higher than 2 mW cm−2. These can be explained by the difference in the utilization efficiency of photogenerated charge carriers.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0009-2614
関連情報
URI
http://www.sciencedirect.com/science/journal/00092614
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.cplett.2004.05.077