TY - JOUR
T1 - Titanium Dioxide-Photocatalized Oxidation of 2,4-Dichlorophenol
AU - Serra, Francesca
AU - Trillas, Maria
AU - Garcia, Josep
AU - Domenech, Xavier
PY - 1994/1/1
Y1 - 1994/1/1
N2 - Titanium dioxide has been used as photocatalyst for the degradation of 2,4-dichlorophenol. This process takes place under UV-illumination obtaining high yields for diluted aqueous solutions. The yield of 2,4-dichlorophenol oxidation depends on the irradiation time, the incident light intensity, the mass of semiconductor in suspension, the initial concentration and very slightly on the pH and temperature. The initial rate values of 2,4-dichlorophenol oxidation follows Langmuir-Hinshelwood kinetics, with a rate constant and an equilibrium adsorption constant of 4.5 x 10-5 M/min and 3.2 x 103/M, respectively, at 25 °C. From this data it is assumed that the oxidation of 2,4-dichlorophenol occurs through reaction with OH radicals originated from valence band processes in the surface-hydroxylated Ti02 particles under illumination. © 1994, Taylor & Francis Group, LLC. All rights reserved.
AB - Titanium dioxide has been used as photocatalyst for the degradation of 2,4-dichlorophenol. This process takes place under UV-illumination obtaining high yields for diluted aqueous solutions. The yield of 2,4-dichlorophenol oxidation depends on the irradiation time, the incident light intensity, the mass of semiconductor in suspension, the initial concentration and very slightly on the pH and temperature. The initial rate values of 2,4-dichlorophenol oxidation follows Langmuir-Hinshelwood kinetics, with a rate constant and an equilibrium adsorption constant of 4.5 x 10-5 M/min and 3.2 x 103/M, respectively, at 25 °C. From this data it is assumed that the oxidation of 2,4-dichlorophenol occurs through reaction with OH radicals originated from valence band processes in the surface-hydroxylated Ti02 particles under illumination. © 1994, Taylor & Francis Group, LLC. All rights reserved.
U2 - 10.1080/10934529409376119
DO - 10.1080/10934529409376119
M3 - Article
SN - 1077-1204
VL - 29
SP - 1409
EP - 1421
JO - Journal of Environmental Science and Health - Part A Environmental Science and Engineering and Toxic and Hazardous Substance Control
JF - Journal of Environmental Science and Health - Part A Environmental Science and Engineering and Toxic and Hazardous Substance Control
IS - 7
ER -