A series of tungsten and nitrogen doped Pt-TiO2
samples were prepared with the aim to extend the TiO2 absorption
to the visible light region and to enhance the separation
efficiency of the photogenerated electron/hole pairs. The physicochemical
features of the powders were characterized by Xray
diffraction (XRD), UV/Vis reflectance spectra, specific surface
area (SSA) determinations, and transmission electron microscopy
(TEM) analyses. The influence of the presence of different doping agents was evaluated, under anaerobic conditions, in
the aqueous photo-reforming of glucose to form H2 at ambient
pressure and temperature under a halogen lamp or natural solar
light irradiation. Arabinose, erythrose, and formic acid were
the main glucose partial oxidation products observed in the
liquid phase, whilst H2 and CO2 were measured in the gaseous
phase. The highest H2 production was observed in the presence
of the Pt-TiO2-W0.25 sample