ImpactU Versión 3.11.2 Última actualización: Interfaz de Usuario: 16/10/2025 Base de Datos: 29/08/2025 Hecho en Colombia
Estudio cinético de la fotooxidación del 4-clorofenol con oxígeno singulete generado por la tetra(4-carboxifenil)porfirina adsorbida sobre dióxido de silicio Kinetic of the photooxidation of 4-chlorophenol with singlet oxygen generated by the tetra(4- carboxyphenyl)porphyrin adsorbed on silicon dioxide
The photooxidation of 4-chlorophenol by singlet oxygen was studied in aqueous solution. The reactions were carried in a heterogeneous system using tetra(4-carboxyphenyl)porphyrin as a sensitizer adsorbed on silicon dioxide (TcPPH/SiO2). The generation of singlet oxygen produced during photosensitization of TcPPH/SiO2 with visible light was analyzed by electron paramagnetic resonance (EPR) studies using spin trapping technique. Hydroquinone and benzoquinone were identified by HPLC as the main products of the photooxidation. The photooxidation of 4-chlorophenol followed a global kinetic Langmuir-Hinshelwood. ----
