Journal
CATALYSIS COMMUNICATIONS
Volume 26, Issue -, Pages 136-139Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2012.05.011
Keywords
Carbon monoxide oxidation; Visible-light response; Localized surface plasmon resonance; Au nanoparticles
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Funding
- National Natural Science Foundation of China [21073037]
- 973 Program [2010CB234604]
- Natural Science Foundation of Fujian [2009J01024]
- Program for Changjiang Scholars and Innovative Research Team in University [PCSIRT0818]
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A visible light (490-780 nm) was introduced into the process of oxidizing CO over a TiO2 supported Au nanoparticle catalyst (Au/TiO2). It is found that the visible-light irradiation can promote the oxidation of CO over Au/TiO2. Based on the results of both the optical absorption of Au/TiO2 and the adsorption of CO over Au/TiO2, it is proposed that the localized surface plasmon resonance (LSPR) of Au nanoparticles induced by the visible-light would promote the adsorption of CO and its activation at the surface of Au species, resulting in the promoted oxidation of CO over Au/TiO2. (C) 2012 Elsevier B.V. All rights reserved.
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