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Atsuhiro Tanaka, Dr. Keiji Hashimoto and Dr. Hiroshi Kominami Gold and Copper Nanoparticles Supported on Cerium(IV) Oxide—A Photocatalyst Mineralizing Organic Acids under Red Light Irradiation ChemCatChem 3

Version of Record online: 29 JUL 2011 | DOI: 10.1002/cctc.201100158

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Under red light: Au and Cu nanoparticles supported on CeO2 powder showed strong absorption at around λ=620 nm attributed to the surface plasmon resonance of Cu-Au nanoparticles and exhibited a higher level of activity than that of Au/CeO2 in the mineralization of organic acids in aqueous suspensions under irradiation with red light. The apparent quantum efficiency reached 7.5 % at λ=625 nm and 5.2 % even at λ=700 nm.

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