RT Journal Article
T1 TiO2/Cu(II) photocatalytic production of benzaldehyde from benzyl alcohol in solar pilot plant reactor
A1 Spasiano, Danilo
A1 Prieto Rodríguez, Lucía
A1 Carbajo Olleros, Jaime
A1 Malato, Sixto
A1 Marotta, Raffaele
A1 Adreozzi, Roberto
AB The technical feasibility of selective photocatalytic oxidation of benzyl alcohol to benzaldehyde, in aqueous solutions, in presence of cupric ions has been investigated in a solar pilot plant with Compound Parabolic Collectors. Aldrich (pure anatase) and P25 Degussa TiO2 have been used as photocatalysts. The influences of cupric species concentrations, solar irradiance and temperature are discussed too. The oxidation rates were strongly influenced by the initial cupric ions concentration, incident solar irradiance and temperatures. The best results found, in terms of yields and selectivities to benzaldehyde under acidic conditions were higher than 50% and 60%, respectively, under acidic conditions. Under deaerated conditions, the presence of reduced copper species was proved by XPS analysis. The results indicated that, at the end of the process, cupric species can be easily regenerated and reused, through a re-oxidation of reduced copper, produced during the photolytic run, with air or oxygen in dark conditions. A figure-of-merit (ACM), proposed by the International Union of Pure and Applied Chemistry (IUPAC) and based on the collector area, has been estimated, under the proposed conditions, with the aim to provide a direct link to the solar-energy efficiency independently of the nature of the system. Generally speaking, it can be considered that the lower ACM values the higher the system efficiency.
PB Elsevier
SN 0926-3373
YR 2013
FD 2013
LK https://hdl.handle.net/20.500.14352/94463
UL https://hdl.handle.net/20.500.14352/94463
LA eng
NO Spasiano, Danilo, et al. «TiO2/Cu(II) Photocatalytic Production of Benzaldehyde from Benzyl Alcohol in Solar Pilot Plant Reactor». Applied Catalysis B: Environmental, vol. 136-137, junio de 2013, pp. 56-63. https://doi.org/10.1016/j.apcatb.2013.01.055.
DS Docta Complutense
RD 17 abr 2025