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Issue 2, 2012
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Bimetallic Au–Pt/TiO2 photocatalysts active under UV-A and simulated sunlight for H2 production from ethanol

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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.

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

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Supplementary files

Article information


Submitted
06 Sep 2011
Accepted
07 Dec 2011
First published
23 Dec 2011

Green Chem., 2012,14, 330-333
Article type
Communication

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

A. Gallo, M. Marelli, R. Psaro, V. Gombac, T. Montini, P. Fornasiero, R. Pievo and V. D. Santo, Green Chem., 2012, 14, 330
DOI: 10.1039/C2GC16112E

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