Archivio istituzionale della ricerca dell'Università degli Studi di Palermo
IRIS è il sistema di gestione integrata dei dati della ricerca (persone, pubblicazioni, progetti, attività) adottato dall’Università di Palermo, e ha lo scopo di raccogliere, conservare, documentare, e diffondere ad accesso aperto le informazioni relative alla produzione scientifica degli autori afferenti all’Ateneo.
EnglishDifferently shape-controlled anatase TiO2 materials were tested as photocatalysts under both simulated and natural solar irradiation. Their photocatalytic activity in 2-propanol and propene partial oxidation and in the complete mineralization of acetaldehyde appears to increase with decreasing the shape control of the TiO2 material. This insight seems to be related to the residual presence of the templating species (fluoride anions) employed during the preparation of the shape-controlled TiO2 materials. In fact, the calcination of the powders, leading to levelling of the fluoride ions content, but also to a remarkable surface area decrease, gave rise to an increase of photocatalytic activity per unit surface area of the materials. In these photocatalytic materials two opposing effects may concur in determining their photoactivity, i.e. the possibly beneficial effect of an increased extent of exposed 001 facets and the detrimental effect resulting from a larger amount of residual fluoride ions employed as capping agents during their synthesis.
Garcia-Lopez, E., Marci, G., Dozzi, M., Palmisano, L., & Selli, E. (2019). Photoactivity of shape-controlled TiO2 in gas-solid regime under solar irradiation. CATALYSIS TODAY, 328, 118-124 [10.1016/j.cattod.2019.01.038].
| Data di pubblicazione: | 2019 | |
| Titolo: | Photoactivity of shape-controlled TiO2 in gas-solid regime under solar irradiation | |
| Autori: | ||
| Citazione: | Garcia-Lopez, E., Marci, G., Dozzi, M., Palmisano, L., & Selli, E. (2019). Photoactivity of shape-controlled TiO2 in gas-solid regime under solar irradiation. CATALYSIS TODAY, 328, 118-124 [10.1016/j.cattod.2019.01.038]. | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.cattod.2019.01.038 | |
| Abstract: | Differently shape-controlled anatase TiO2 materials were tested as photocatalysts under both simulated and natural solar irradiation. Their photocatalytic activity in 2-propanol and propene partial oxidation and in the complete mineralization of acetaldehyde appears to increase with decreasing the shape control of the TiO2 material. This insight seems to be related to the residual presence of the templating species (fluoride anions) employed during the preparation of the shape-controlled TiO2 materials. In fact, the calcination of the powders, leading to levelling of the fluoride ions content, but also to a remarkable surface area decrease, gave rise to an increase of photocatalytic activity per unit surface area of the materials. In these photocatalytic materials two opposing effects may concur in determining their photoactivity, i.e. the possibly beneficial effect of an increased extent of exposed 001 facets and the detrimental effect resulting from a larger amount of residual fluoride ions employed as capping agents during their synthesis. | |
| URL: | http://www.sciencedirect.com/science/journal/09205861 | |
| Settore Scientifico Disciplinare: | Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie | |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Garcia_Catalysis Today 328 (2019) 118-124.pdf | Articolo principale | Versione Editoriale | Administrator Richiedi una copia |
http://hdl.handle.net/10447/362327
Copyright © 2021