The Effect of Various Process Conditions on the Photocatalytic Degradation of NO

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

Praga (República Checa)

Simposio; 3rd International Symposium on Nanotechnology in Construction; 2009

This paper presents the research conducted on photocatalytic concrete products with respect to the evaluation of the effect of varying process conditions on the degradation of nitric oxide (NO). The degradation process under laboratory conditions is modeled using the Langmuir-Hinshelwood kinetic model as basic reaction model. The suitability of the model is validated by experimental data as well as data obtained from literature. Furthermore, the effect of variations of process conditions like irradiance and relative humidity on the reaction rate constant k and adsorption equilibrium constant Kd  are considered in the model.