Rendimiento cuántico de producción de radical hidroxilo por medidas de fluorescencia en el sistema TcPPFe/H2O2/ UV-VIS

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Autores

Carlos Enrique Díaz-Uribe
William Andrés Vallejo-Lozada
Lizeth Johanna Alvarado-Rueda

Abstract

El rendimiento cuántico de producción de radical hidroxilo (ФOH) fue medido desde la fotólisis del peróxido de hidrógeno (H2O2) catalizada por la tetracarboxifenilporfirina de hierro (III) (TCPPFe) bajo luz ultravioleta. ФOH fue determinado por medidas de fluorescencia delproducto de reacción entre el radical hidroxilo (HO●) y el tereftalato disódico. La TCPPFe presenta un ФOH=0,13, mientras que la reacción estándar de la fotólisis del H2O2, no catalizada, tiene un ФOH=0,11. La reacción no tiene lugar en ausencia de luz, pero en presencia de luz visible, H2O2 y TcPPFe generan HO●.

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