The reaction of DMPO as the spin trapping agent with nitrate radicals photocatalytically generated results in the formation of DMPOX showing a highly specific EPR spectrum. The method can be used as a semi-quantitative and convenient way to detect nitrate radicals in non-aqueous solutions/suspensions, which was never achieved up to now through EPR spectroscopy. Results support in a more direct way the proposed generation and reactivity of nitrate radicals in photocatalytic media and open a new chapter in the field of heterogeneous photocatalysis.
Reaction of Nitrate Radicals and DMPO in Non‐Aqueous Media: A Novel Detection Tool to Highlight the Nitrate Radical Role in Photocatalytic Processes / Zollo, Alessia; Gottuso, Alessandro; Palmisano, Leonardo; Giamello, Elio; Parrino, Francesco; Livraghi, Stefano. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - 64:23(2025), p. e202505313. [10.1002/anie.202505313]
Reaction of Nitrate Radicals and DMPO in Non‐Aqueous Media: A Novel Detection Tool to Highlight the Nitrate Radical Role in Photocatalytic Processes
Gottuso, Alessandro;Parrino, Francesco;
2025-01-01
Abstract
The reaction of DMPO as the spin trapping agent with nitrate radicals photocatalytically generated results in the formation of DMPOX showing a highly specific EPR spectrum. The method can be used as a semi-quantitative and convenient way to detect nitrate radicals in non-aqueous solutions/suspensions, which was never achieved up to now through EPR spectroscopy. Results support in a more direct way the proposed generation and reactivity of nitrate radicals in photocatalytic media and open a new chapter in the field of heterogeneous photocatalysis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
