A new class of bimetallic Au–Pt/TiO2 photocatalysts were developed and employed in H2 photoassisted production using ethanol as a sacrificial reagent both under UV-A and simulated sunlight irradiation. Remarkably, preliminary experiments show promising hydrogen evolution under visible light using Au0.5–Pt0.5/TiO2 with methanol. The presence of bimetallic Au–Pt nanoparticles and the TiO2 visible light absorption, induced by the presence of oxygen vacancies and/or Ti3+, are the two parameters accounting for the difference in activity.

Bimetallic Au-Pt/TiO2 photocatalysts active under UV-A and simulated sunlight for H2 production from ethanol

GOMBAC, VALENTINA;MONTINI, TIZIANO;FORNASIERO, Paolo;
2012-01-01

Abstract

A new class of bimetallic Au–Pt/TiO2 photocatalysts were developed and employed in H2 photoassisted production using ethanol as a sacrificial reagent both under UV-A and simulated sunlight irradiation. Remarkably, preliminary experiments show promising hydrogen evolution under visible light using Au0.5–Pt0.5/TiO2 with methanol. The presence of bimetallic Au–Pt nanoparticles and the TiO2 visible light absorption, induced by the presence of oxygen vacancies and/or Ti3+, are the two parameters accounting for the difference in activity.
2012
http://pubs.rsc.org/en/content/articlelanding/2012/gc/c2gc16112e
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2467131
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