期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 97, 期 1-2, 页码 115-119出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2010.03.030
关键词
Visible-light-responsive photocatalyst; Shape-controlled rutile titanium(IV) oxide; Site-selective modification of metal ion
资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- New Energy and Industrial Technology Development Organization (NEDO)
- Grants-in-Aid for Scientific Research [22750139] Funding Source: KAKEN
{1 1 1} exposed crystal faces of shape-controlled ruffle titanium(IV) oxide (TIO2) were site-selectively modified with trivalent iron(III)(Fe3+) ions by utilizing adsorption property of iron(III)/iron(II)(Fe3+/Fe2+) ions The rutile TiO2 with site-selective modification of Fe3+ ions showed high photocatalync activity under visible-light irradiation as a result of separation of redox sites. i.e. oxidation and reduction proceed over Fe3+ ions on {1 1 1} faces and the bare TiO2 surface on {1 1 0} faces. respectively. Double-beam photoacoustic spectroscopic analyses suggest that the high activity of TiO2 with site-selective modification of Fe3+ ions is attributed to not efficient electron injection from Fe3+ ions but efficient reduction by injected elections On {1 1 0} faces. (C) 2010 Elsevier B V All rights ieseived.
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