TY - JOUR
T1 - Investigating the activity of modified TiO2 photocatalysts used for the photoreforming of biomass derivatives
AU - Umair, Muhammad
AU - Loddo, Vittorio
AU - Palmisano, Leonardo
AU - Pintar, Albin
AU - Žerjav, Gregor
AU - Palmisano, Giovanni
AU - Al Jitan, Samar
AU - Bellardita, Marianna
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/8/1
Y1 - 2024/8/1
N2 - Different TiO2 modified (with Pt, Cu2O, Nb) photocatalysts have been compared for the photo-reforming of glucose and fructose at ambient conditions with the aim of linking the photoactivity to some structural and surface characteristics. A different degree of conversion, distribution of intermediates and H2 production were observed with the various photocatalysts. Moreover, the results obtained with the same catalysts were slightly different with the two substrates, highlighting the importance of the interaction between the catalyst surface and the organic compound. Bare TiO2 was inactive towards H2 production, Cu2O was effective in replacing Pt for hydrogen generation, and the presence of Pt/Nb was beneficial for both H2 production and selective oxidation. Moreover, Pt not only works as a sink for the photoproduced electrons, as it is well known in the literature, but also modifies the surface acid-base properties of catalysts as revealed by DRIFT and TPD measurements.
AB - Different TiO2 modified (with Pt, Cu2O, Nb) photocatalysts have been compared for the photo-reforming of glucose and fructose at ambient conditions with the aim of linking the photoactivity to some structural and surface characteristics. A different degree of conversion, distribution of intermediates and H2 production were observed with the various photocatalysts. Moreover, the results obtained with the same catalysts were slightly different with the two substrates, highlighting the importance of the interaction between the catalyst surface and the organic compound. Bare TiO2 was inactive towards H2 production, Cu2O was effective in replacing Pt for hydrogen generation, and the presence of Pt/Nb was beneficial for both H2 production and selective oxidation. Moreover, Pt not only works as a sink for the photoproduced electrons, as it is well known in the literature, but also modifies the surface acid-base properties of catalysts as revealed by DRIFT and TPD measurements.
KW - Biomass valorisation
KW - Glucose and fructose partial oxidation
KW - Modified TiO
KW - Photocatalytic H production
UR - http://www.scopus.com/inward/record.url?scp=85189751917&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2024.115654
DO - 10.1016/j.jphotochem.2024.115654
M3 - Article
AN - SCOPUS:85189751917
SN - 1010-6030
VL - 453
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
M1 - 115654
ER -