Influence of activated carbon upon titania on aqueous photocatalytic consecutive runs in phenol photodegradation
| Autor: | Jorge Laine, Joaquín L Brito, J.M. Herrmann, Juan Matos, D. Uzcategui |
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| Přispěvatelé: | Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Titania Activated carbon Inorganic chemistry Kinetics 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy Catalysis chemistry.chemical_compound Reaction rate constant Photodegradation medicine Phenol Photocatalytic degradation General Environmental Science Aqueous solution Chemistry Process Chemistry and Technology Total organic carbon [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology [SDE.ES]Environmental Sciences/Environmental and Society 0104 chemical sciences Synergy Photocatalysis 0210 nano-technology medicine.drug |
| Zdroj: | Applied Catalysis B: Environmental Applied Catalysis B: Environmental, Elsevier, 2007, 70, pp.461-469. ⟨10.1016/j.apcatb.2005.10.040⟩ ResearcherID |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2005.10.040⟩ |
| Popis: | International audience; The photocatalytic degradation of phenol was performed at room temperature in aqueous suspended mixtures of TiO2 and activated carbon (AC). The main objective of the present work was to verify the potential of TiO2/AC system in the photocatalytic degradation of phenol and the principal intermediate products after performing three consecutive runs. The phenol disappearance follows a first-order kinetics. Therefore, the apparent first-order rate constant of phenol and total organic carbon photodegradations were selected to evaluate the photoefficiency of the system. From the present results it can be concluded that there is a synergistic effect between both solids which is determined by the numbers of photocatalytic runs. From a practical point of view, TiO2/AC is able to photomineralize phenol and total organic carbon for three and two, respectively, consecutive runs more efficiently than TiO2 alone. |
| Databáze: | OpenAIRE |
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