| Titre : | Energy efficiency in photocatalytic reactors for the full span of reaction times (2010) |
| Auteurs : | Benito Serrano, Auteur ; Aaron Ortiz, Auteur ; Jesus Moreira, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 22, Novembre 2009) |
| Article en page(s) : | pp. 9864–9876 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Photocatalytic reactors Kinetic modeling Parallel− ; series reaction network |
| Résumé : | OH• radicals react in photocatalytic reactors via adsorbed species on the catalytic surface through complex reaction mechanisms leading to complete mineralization of organic molecules. Our research group has recently contributed with kinetic modeling of the photocatalytic network using a parallel−series reaction network. This kinetic approach helps toward the assessment of the photocatalytic thermodynamic efficiency factors (PTEF) and quantum yields (QY). Efficiency calculations consider stoichiometric relationships involving observable chemical species and OH• groups. These stoichiometric equations set the OH• requirements for reaching a particular intermediate species and for the complete mineralization of them. On this basis, the PTEF and QY factors for phenol photoconversion point toward a high degree of photon utilization as in the case of Photo-CREC units and, as a result, confirm the value of photocatalysis for the conversion of organic pollutants in water. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie900353n |
