INVESTIGADORES
ALFANO Orlando Mario
capítulos de libros
Título:
Quantum Efficiencies of the Photocatalytic Decomposition of 4-CP
Autor/es:
SATUF, M.L.; BRANDI, R.J.; CASSANO, A.E.; ALFANO, O.M.
Libro:
Oxidation Technologies for Water Treatment and Wastewater Treatment
Editorial:
Verlag
Referencias:
Lugar: Goslar; Año: 2006; p. 480 - 485
Resumen:
This study presents the evaluation of the quantum efficiency and the apparent quantum efficiency of the photocatalytic degradation of 4-chlorophenol (4-CP) in a TiO2 slurry photoreactor. To calculate these efficiencies, the radiation absorbed by the heterogeneous reacting system needs to be determined. A one-dimensional, one-directional radiation field model is proposed to compute the photon absorption inside the slurry photocatalytic reactor. The efficiencies are analyzed considering the influence of three operating variables: initial pH, catalyst loading, and irradiation intensity. Important dependencies on these variables were found. The best quantum efficiencies were obtained in acidic conditions, at the highest explored catalyst concentration (1.0 × 10?3 g cm?3) and at the lowest irradiation level.