Green photocatalytic synthesis of stable Au and Ag nanoparticles

Pedro Quaresma; Leonor Soares; Lívia Contar; Adelaide Miranda; Inês Osório; Patrícia A. Carvalho; Ricardo Franco; Eulália Pereira

doi:10.1039/B917203N

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Green Chemistry

Issue 11, 2009

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Green photocatalytic synthesis of stable Au and Ag nanoparticles

Pedro Quaresma , Leonor Soares , Lívia Contar , Adelaide Miranda , Inês Osório , Patrícia A. Carvalho , Ricardo Franco and Eulália Pereira

Green Chem., 2009, 11, 1889-1893

DOI: 10.1039/B917203N
Received 13 Apr 2009, Accepted 19 Aug 2009
First published on the web 07 Sep 2009

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Stable Au and Ag nanoparticles with diameter 5–10 nanometers were synthesized in water at pH 7 and at room temperature by a novel green photocatalytic method. The method features very low energy consumption and non-toxic reagents with high yields of concentrated nanoparticles in aqueous solution obtained in less than four minutes. The nanoparticles so obtained are highly monodispersed, thus avoiding the use of further time consuming and cumbersome purification procedures. In addition, the capping agent is readily exchanged by thiols, providing a facile way of functionalization for biological applications.

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Articles By

Pedro Quaresma
Leonor Soares
Lívia Contar
Adelaide Miranda
Inês Osório
Patrícia A. Carvalho
Ricardo Franco
Eulália Pereira

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Green Chemistry

Green photocatalytic synthesis of stable Au and Ag nanoparticles

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