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Two different catalysts consisting of Pt/TiO2 and Pd/TiO2 were submitted to diverse oxidative and reductive calcination treatments and tested for photocatalytic reforming of glucose water solution (as a model of biomass component) in H2 production. Oxidation and reduction at 850 °C resulted in better photocatalysts for hydrogen production than Degussa P-25 and the ones prepared at 500 °C, despite the fact that the former consisted in very low surface area (6-8 m2/g) rutile titania specimens. The platinum-containing systems prepared at 850 °C give the most effective catalysts. XPS characterization of the systems showed that thermal treatment at 850 °C resulted in electron transfer from titania to metal particles through the so-called strong metal-support interaction (SMSI) effect. Furthermore, the greater the SMSI effect, the better the catalytic performance. Improvement in photocatalytic behavior is explained in terms of avoidance of electron-hole recombination through the electron transfer from titania to metal particles.

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