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The Existence of Nitrate Radicals in Irradiated TiO 2 Aqueous Suspensions in the Presence of Nitrate Ions
- Source :
- Angewandte Chemie International Edition. 57:10702-10706
- Publication Year :
- 2018
- Publisher :
- Wiley, 2018.
-
Abstract
- Evidence of the existence of nitrate radical in irradiated aqueous TiO2 suspensions in the presence of nitrate ions are reported for the first time. The joint use of UV/Vis and EPR spectroscopy showed that nitrate radicals are formed by hole induced oxidation of nitrate ions. Photocatalytic degradation of a model alkene compound allowed to highlight the presence of an intermediate organic nitrate deriving from nitrate radical attack to the double bond of the substrate. These results not only allow deeper understanding of photocatalytic processes, but open the route to new green photocatalytic syntheses initiated by nitrate radicals and to new insights in the field of atmospheric chemistry.
- Subjects :
- Double bond
Radical
010402 general chemistry
Photochemistry
01 natural sciences
Catalysis
Catalysi
law.invention
photocatalysi
chemistry.chemical_compound
Nitrate
nitrate
law
TiO2
Electron paramagnetic resonance
chemistry.chemical_classification
radical
Aqueous solution
010405 organic chemistry
Alkene
Chemistry (all)
General Medicine
General Chemistry
photocatalysis
radicals
0104 chemical sciences
chemistry
Photocatalysis
Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie
Subjects
Details
- ISSN :
- 15213773 and 14337851
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Angewandte Chemie International Edition
- Accession number :
- edsair.doi.dedup.....6aaf8ac621b9e92d9c8e405f4ef28aea
- Full Text :
- https://doi.org/10.1002/anie.201804879