RT Journal Article
T1 Influence of iron leaching and oxidising agent employed on solar light assisted photodegradation of phenol over nanostructured iron-doped titania catalysts
T2 Influencia del agente oxidante y lixiviación de hierro empleado en la fotodegradación asistida por la luz solar del fenol sobre catalizadores de titania nanoestructurados dopados con hierro.
A1 Adán Delgado, María Cristina
A1 Bahamonde, Ana
A1 Oller, Isabel
A1 Malato, Sixto
A1 Martínez-Arias, Arturo
AB Iron-doped TiO2 catalysts with two different iron contents (0.7 and 3.5 wt.%) as well as the corresponding undoped system, prepared by a combined sol–gel/microemulsion method and calcined at 600 °C, have been examined with respect to their behaviour for photocatalytic degradation of aqueous phenol with H2O2 under solar light. The activity results are complemented with structural/morphological and electronic characterization analysis achieved by XRD, TEM, Raman, SBET, UV–vis DRS and XPS techniques. A detrimental effect of the presence of iron on the photoactivity is detected for the sample with 0.7 wt.% iron. In contrast, some activity enhancement is produced for the sample with highest iron loading. Such irregular catalytic behaviour with respect to iron loading is analyzed on the basis of the presence of additional catalytic contributions from new photoactive species. These are created as a consequence of surface modifications produced under reaction conditions related to the existence of phenomena of iron leaching from the catalysts. Differences in the specific nanostructure present in each case can also play a role on explaining the differences observed in the photoactivity. Finally, an analysis of the photoactivity as a function of the oxidizing agent employed, either H2O2 or oxygen from air, is also performed.
PB Elsevier
SN 0926-3373
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/93343
UL https://hdl.handle.net/20.500.14352/93343
LA eng
NO Adán, C., Bahamonde, A., Oller, I., Malato, S., & Martínez-Arias, A. (2014). Influence of iron leaching and oxidizing agent employed on solar photodegradation of phenol over nanostructured iron-doped titania catalysts. Applied Catalysis B: Environmental, 144, 269-276.
NO Ministerio de Educación y Ciencia (España)
NO Consejo Superior Investigaciones Científicas 
DS Docta Complutense
RD 4 abr 2025