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Probing Photocatalytic Active Sites on a Single Titanosilicate Zeolite with a Redox‐Responsive Fluorescent Dye
Author(s) -
Tachikawa Takashi,
Yamashita Soichiro,
Majima Tetsuro
Publication year - 2010
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/anie.200904876
Subject(s) - photocatalysis , redox , fluorescence , adsorption , zeolite , photochemistry , chemistry , single crystal , materials science , catalysis , nanotechnology , inorganic chemistry , organic chemistry , optics , crystallography , physics
Proper lighting : Investigation of photocatalytic oxidation by in situ fluorescence imaging with a redox‐responsive fluorescent dye (see picture, green) shows that acid treatment of single titanosilicate crystals significantly increases both the adsorption and reaction efficiencies and the heterogeneity of photocatalytic activity among crystals. Furthermore, crystal defects serve as reactive sites during the photocatalytic reaction.