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Catalysts 2017, 7(10), 301; doi:10.3390/catal7100301

Flame-Made Cu/TiO2 and Cu-Pt/TiO2 Photocatalysts for Hydrogen Production

1
Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy
2
Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy
3
CIMAINA, Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy
4
ISTM-CNR Lab Nanotechnology, Via Fantoli 16/15, 20138 Milano, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Bunsho Ohtani
Received: 8 September 2017 / Revised: 29 September 2017 / Accepted: 11 October 2017 / Published: 16 October 2017
(This article belongs to the Special Issue Titanium Dioxide Photocatalysis)
View Full-Text   |   Download PDF [2103 KB, uploaded 18 October 2017]   |  

Abstract

The effect of Cu or Cu-Pt nanoparticles in TiO2 photocatalysts prepared by flame spray pyrolysis in one step was investigated in hydrogen production from methanol photo-steam reforming. Two series of titanium dioxide photocatalysts were prepared, containing either (i) Cu nanoparticles (0.05–0.5 wt%) or (ii) both Cu (0 to 0.5 wt%) and Pt (0.5 wt%) nanoparticles. In addition, three photocatalysts obtained either by grafting copper and/or by depositing platinum by wet methods on flame-made TiO2 were also investigated. High hydrogen production rates were attained with copper-containing photocatalysts, though their photoactivity decreased with increasing Cu loading, whereas the photocatalysts containing both Cu and Pt nanoparticles exhibit a bell-shaped photoactivity trend with increasing copper content, the highest hydrogen production rate being attained with the photocatalyst containing 0.05 wt% Cu. View Full-Text
Keywords: photocatalysis; flame-spray pyrolysis; TiO2 modification; Cu and Pt nanoparticles; photocatalytic hydrogen production; methanol photo-steam reforming photocatalysis; flame-spray pyrolysis; TiO2 modification; Cu and Pt nanoparticles; photocatalytic hydrogen production; methanol photo-steam reforming
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MDPI and ACS Style

Bernareggi, M.; Dozzi, M.V.; Bettini, L.G.; Ferretti, A.M.; Chiarello, G.L.; Selli, E. Flame-Made Cu/TiO2 and Cu-Pt/TiO2 Photocatalysts for Hydrogen Production. Catalysts 2017, 7, 301.

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