Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts

J.T. Carneiro; Joana T. Carneiro; Tom J. Savenije; Guido Mul

doi:10.1039/B820425J

Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts

J.T. Carneiro, Joana T. Carneiro, Tom J. Savenije, Guido Mul

Photocatalytic Synthesis

Research output: Contribution to journal › Article › Academic › peer-review

41 Citations (Scopus)

Abstract

Time resolved microwave conductivity (TRMC) measurements show that the presence of Au on anatase Hombikat UV100 significantly reduces the lifetime of mobile electrons formed by photo-excitation of this photocatalyst at 300 nm, providing evidence for the widely acclaimed electron localization effect of Au in promoting TiO2 photocatalysts. Electron localization efficiency of Au was even higher for Au-promoted Hombikat calcined at 400 °C, explained by enlargement of the anatase particle size and the associated, relatively larger fraction of anatase particles in direct contact with Au

Original language	Undefined
Pages (from-to)	2708-2714
Journal	Physical chemistry chemical physics
Volume	11
Issue number	15
DOIs	https://doi.org/10.1039/B820425J
Publication status	Published - 2009

Keywords

METIS-306523
IR-95340

Access to Document

10.1039/B820425J

Cite this

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title = "Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts",

abstract = "Time resolved microwave conductivity (TRMC) measurements show that the presence of Au on anatase Hombikat UV100 significantly reduces the lifetime of mobile electrons formed by photo-excitation of this photocatalyst at 300 nm, providing evidence for the widely acclaimed electron localization effect of Au in promoting TiO2 photocatalysts. Electron localization efficiency of Au was even higher for Au-promoted Hombikat calcined at 400 °C, explained by enlargement of the anatase particle size and the associated, relatively larger fraction of anatase particles in direct contact with Au",

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AU - Savenije, Tom J.

AU - Mul, Guido

PY - 2009

Y1 - 2009

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AB - Time resolved microwave conductivity (TRMC) measurements show that the presence of Au on anatase Hombikat UV100 significantly reduces the lifetime of mobile electrons formed by photo-excitation of this photocatalyst at 300 nm, providing evidence for the widely acclaimed electron localization effect of Au in promoting TiO2 photocatalysts. Electron localization efficiency of Au was even higher for Au-promoted Hombikat calcined at 400 °C, explained by enlargement of the anatase particle size and the associated, relatively larger fraction of anatase particles in direct contact with Au

KW - METIS-306523

KW - IR-95340

U2 - 10.1039/B820425J

DO - 10.1039/B820425J

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JF - Physical chemistry chemical physics

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