Efecto de la Dispersión de Radiación sobre el Rendimiento Cuántico en la Degradación Fotocatalítica de Ácido Dicloroacético

Abstract

Different models of radiation scattering used to valuate its effect on the amount of radiant energy absorbed by a photocatalyst in the determination of quantum yields were analyzed. The radiation field in a heterogeneous photodecomposition of dichloroacetic acid catalyzed by particles of titanium dioxide was simulated using a one-dimensional model to evaluate the absorption and scattering of radiation in the reaction space. The results obtained by the different models of nonisotropic phase function with the isotropic phase function were compared. It was found that the scattering of isotropic radiation is a reasonable approximation for scattering produced by suspended particles of titanium dioxide.