Influence of Excitation Wavelength (UV or Visible Light) on the Photocatalytic Activity of Titania Containing Gold Nanoparticles for the Generation of Hydrogen or Oxygen from Water

G. Silva, Cláudia; Juárez, Raquel; Marino, Tiziana; Molinari, Raffaele; Garcı́a, Hermenegildo

doi:10.1021/ja1086358

Public

Influence of Excitation Wavelength (UV or Visible Light) on the Photocatalytic Activity of Titania Containing Gold Nanoparticles for the Generation of Hydrogen or Oxygen from Water

Published in Journal of the American Chemical Society • Dec 13, 2010

Authors:

Cláudia G. Silva

Raquel Juárez

Tiziana Marino

Abstract

Gold nanoparticles supported on P25 titania (Au/TiO(2)) exhibit photocatalytic activity for UV and visible light (532 nm laser or polychromatic light λ > 400 nm) water splitting. The efficiency and operating mechanism are different depending on whether excitation occurs on the titania semiconductor ...

Subject

Photocatalysis

Chemistry

Calcination

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