Photocatalytic Concrete Stones with TiO2 for Atmospheric NOx Removal

MARÍA DE LOS MILAGROS BALLARI; MARTIN HUNGER; GÖTZ HÜSKEN; JOS H.J.H. BROUWERS

Weimar (Alemania)

Conferencia; 17th IBAUSIL International Conference on Building Materials; 2009

In the present work the degradation of NOx compounds employing concrete paving stones provided with TiO2 to be applied in road construction is studied. The experiments were carried out in a photoreactor designed according to the standard ISO 22197-1 (2007) to assess these kind of photocatalytic materials. A kinetic model is proposed to describe the photocatalytic reaction of NO and NO2 and the influence of several parameters that can affect the performance of these stones.