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A Patterned TiO 2 (Anatase)/TiO 2 (Rutile) Bilayer‐Type Photocatalyst: Effect of the Anatase/Rutile Junction on the Photocatalytic Activity
Author(s) -
Kawahara Tetsuro,
Konishi Yasuhiro,
Tada Hiroaki,
Tohge Noboru,
Nishii Junji,
Ito Seishiro
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020802)41:15<2811::aid-anie2811>3.0.co;2-#
Subject(s) - anatase , rutile , photocatalysis , bilayer , materials science , chemical engineering , nanotechnology , chemistry , catalysis , membrane , biochemistry , engineering
Coupling of anatase and rutile TiO 2 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).