Bimetallic AuPt/TiO2 photocatalysts active under UV-A and simulated sunlight for H2 production from ethanolElectronic supplementary information (ESI) available: materials preparation, XRD, HRTEM, CO-DRIFTS, TPR characterization and photocatalytic tests; CO-DRIFTS spectra and TPR profiles. See DOI: 10.1039/c2gc16112e

A new class of bimetallic AuPt/TiO 2 photocatalysts were developed and employed in H 2 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 A...

Full description

Saved in:
Bibliographic Details
Main Authors Gallo, Alessandro, Marelli, Marcello, Psaro, Rinaldo, Gombac, Valentina, Montini, Tiziano, Fornasiero, Paolo, Pievo, Roberta, Santo, Vladimiro Dal
Format Journal Article
LanguageEnglish
Published 02.01.2012
Online AccessGet full text

Cover

More Information
Summary:A new class of bimetallic AuPt/TiO 2 photocatalysts were developed and employed in H 2 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 Au0.5Pt0.5/TiO 2 with methanol. The presence of bimetallic AuPt nanoparticles and the TiO 2 visible light absorption, induced by the presence of oxygen vacancies and/or Ti 3+ , are the two parameters accounting for the difference in activity. Bimetallic Au0.5%Pt0.5%/TiO 2 photocatalysts show superior hydrogen production rates under UV-A and simulated sunlight using ethanol as a sacrificial reagent.
Bibliography:10.1039/c2gc16112e
Electronic supplementary information (ESI) available: materials preparation, XRD, HRTEM, CO-DRIFTS, TPR characterization and photocatalytic tests; CO-DRIFTS spectra and TPR profiles. See DOI
ISSN:1463-9262
1463-9270
DOI:10.1039/c2gc16112e