A Patterned TiO2(Anatase)/TiO2(Rutile) Bilayer-Type Photocatalyst: Effect of the Anatase/Rutile Junction on the Photocatalytic Activity

Coupling of anatase and rutile TiO2 in a bilayer form significantly increases photocatalytic activity relative to the individual components. Reducing the dimensions of the junction to the charge‐separation distance is of importance in increasing this activity. The interfacial electron transfer from...

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Published inAngewandte Chemie (International ed.) Vol. 41; no. 15; pp. 2811 - 2813
Main Authors Kawahara, Tetsuro, Konishi, Yasuhiro, Tada, Hiroaki, Tohge, Noboru, Nishii, Junji, Ito, Seishiro
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 02.08.2002
WILEY‐VCH Verlag
Subjects
heterogeneous catalysis
semiconductors
sol-gel processes
thin films
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Summary:Coupling of anatase and rutile TiO2 in a bilayer form significantly increases photocatalytic activity relative to the individual components. Reducing the dimensions of the junction to the charge‐separation distance is of importance in increasing this activity. The interfacial electron transfer from anatase to rutile (<10 μm) was revealed by labeling and visualizing the reduction sites by deposition of Ag nanoparticles (see picture).
Bibliography:istex:9C745CD561B200074CDE7D0AF4936AB07249CBB9
ArticleID:ANIE2811
ark:/67375/WNG-0GPRMPBP-B
ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20020802)41:15<2811::AID-ANIE2811>3.0.CO;2-#