Investigation on Parameters Affecting the Effectiveness of Photocatalytic Functional Coatings to Degrade NO: TiO₂ Amount on Surface, Illumination, and Substrate Roughness

Figure 10

Influence of substrate nature on NO degradation ratio (in %) for two TiO₂ dry matter contents applied to the surface (in g/m²) of each substrate under three different illumination conditions: (a) 8 g/m² applied to all substrates, (b) 18 g/m² applied to wood, and 20 g/m² applied to mortars. The accuracy of the measurements is ±0.5%.

(a)

(b)