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Issue 9, 2011
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Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles

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Abstract

Cu nanoparticles (NPs) were deposited on UV-irradiated TiO2 in an aqueous solution containing Cu(CH3COO)2 and ethanol by a photocatalytic reaction. Cu NPs on TiO2 exhibit an extinction (= absorption + scattering + reflection) peak due to localized surface plasmon resonance at around 600 nm initially. The density and size as well as the extinction of Cu NPs increase during the deposition, accompanied by a slight redshift of the peak. Eventually, TiO2 is mostly covered with coalesced Cu NPs that exhibit a spectrum less characteristic of Cu NPs, but more characteristic of a Cu layer.

Graphical abstract: Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles

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Article information


Submitted
05 May 2011
Accepted
28 May 2011
First published
27 Jul 2011

Nanoscale, 2011,3, 3641-3645
Article type
Paper

Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles

E. Kazuma, T. Yamaguchi, N. Sakai and T. Tatsuma, Nanoscale, 2011, 3, 3641
DOI: 10.1039/C1NR10456J

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