Direct time-resolved detection of singlet oxygen in zeolite-based photocatalysts |
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| Authors: | Cojocaru Bogdan Laferrière Marie Carbonell Esther Parvulescu Vasile García Hermenegildo Scaiano J C |
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| Affiliation: | Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa K1N 6N5, Canada. |
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| Abstract: | Singlet oxygen has been characterized spectroscopically as a product of the exposure of suspensions of zeolites containing oxidation catalysts. Spectroscopic and lifetime studies show that a part of the singlet oxygen formed reacts within the zeolite porous structure, while a significant fraction escapes and becomes available for reaction in the bulk media. The liquid phase plays a key role in determining intra- and extracavity dynamics. |
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