What is it about?
TiO2 is known to be a prototype of photocatalyst. Various useful reactions including degradation of pollutant and water splitting into H2 and O2 occur by light irradiation. Luminescence induced by light irradiation is a minor process but may include various information about photocatalytic reaction mechanism. We studied such luminescence in detail.
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Why is it important?
We could measure very weak luminescence from anatase type TiO2 photocatalysts. We found that decay profiles and spectra of the luminescence are different among three different commercial products. Thus, luminescence would be useful to characterize photocatalytic activity.
Perspectives
Luminescence from TiO2 photocatalysts can be used as a powerful tool to explore photocatalytic reaction mechanism and it would be applied to other photocatalytic materials.
Ryuzi Katoh
Nihon university
Read the Original
This page is a summary of: Photoluminescence study of anatase TiO2 photocatalysts at the pico- and nanosecond timescales, The Journal of Chemical Physics, May 2024, American Institute of Physics,
DOI: 10.1063/5.0203925.
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