Visible Light TiO2 Photocatalysts Assessment for the Indoor Air Decontamination

BALLARI, M.; CARBALLADA, Q.L.; BROUWERS, H.J.H.; ALFANO, O.M.; CASSANO, A.E.

Congreso; 7th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications-SPEA7; 2012

Different commercial, visible light response, TiO2 powders are studied in order to assess their application in indoor air decontamination. To do that the TiO2 powders were immobilized on borosilicate glass plates according to a dip coating method. Then, the photocatalytic performance of these plates under visible light was evaluated in a continuous gas flat plate photoreactor using nitrogen oxide gas (NO) as the pollutant. The photocatalytic NOx degradation by immobilized TiO2 powders was related with their optical properties, finding a clear correlation between them. These results are useful to decide which TiO2 will be more efficient in a full scale air decontamination process under indoor conditions.