Issue 2, 2012
From the journal:

Green Chemistry

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

Alessandro Gallo,a   Marcello Marelli,a   Rinaldo Psaro,b   Valentina Gombac,c   Tiziano Montini,c   Paolo Fornasiero,c   Roberta Pievod  and  Vladimiro Dal Santo*b  

* Corresponding authors

a CNR – Istituto di Scienze e Tecnologie Molecolari, Via G. Fantoli 16/15, Italy

b CNR – Istituto di Scienze e Tecnologie Molecolari, Via C. Golgi 19, Italy
E-mail: v.dalsanto@istm.cnr.it
Fax: +39-02-50314405
Tel: +39-02-50314428

c Dipartimento di Scienze Chimiche e Farmaceutiche, ICCOM-CNR and INSTM, Università degli Studi di Trieste, via L. Giorgieri 1, Trieste, Italy

d Electron Paramagnetic Resonance group, Max Planck Institute for Biophysical Chemistry, am Faßberg 11, Göttingen, Germany

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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Article information

DOI
https://doi.org/10.1039/C2GC16112E
Article type
Communication
Submitted
06 Sep 2011
Accepted
07 Dec 2011
First published
23 Dec 2011

Green Chem., 2012,14, 330-333

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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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