In the present study, the photocatalytic degradation of NO on sulphated titania (S-TiO2) was studied in a twodimensional fluidized bed photoreactor. The effect of reaction temperature and initial NO concentration has been analyzed. Photocatalytic treatment in fluidized bed reactor on sulphated titania is able to remove NO in the presence of O2. NO degradation activity decreased with the increase of reaction temperature and NO initial concentration. Total nitrogen mass balance (performed coupling the analysis of gaseous phase and the results from TG analysis) suggest that, in presence of O2, NO is reduced into N2 and N2O (low concentration) with the simultaneous formation of nitrate adsorbed on catalyst surface.
Photocatalytic removal of NO on sulphated TiO2 in a photocatalytic fluidized bed reactor
Vaiano, Vincenzo;Sannino, Diana;Ciambelli, Paolo
2017
Abstract
In the present study, the photocatalytic degradation of NO on sulphated titania (S-TiO2) was studied in a twodimensional fluidized bed photoreactor. The effect of reaction temperature and initial NO concentration has been analyzed. Photocatalytic treatment in fluidized bed reactor on sulphated titania is able to remove NO in the presence of O2. NO degradation activity decreased with the increase of reaction temperature and NO initial concentration. Total nitrogen mass balance (performed coupling the analysis of gaseous phase and the results from TG analysis) suggest that, in presence of O2, NO is reduced into N2 and N2O (low concentration) with the simultaneous formation of nitrate adsorbed on catalyst surface.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
