Photochemical routes to silver and gold nanoparticles

Autor:	M. Luisa Marin, Luca Marett, Katherine L. McGilvray, Paul Billone, Carlos Miguel Gonzalez, Juan C. Scaiano, Nathan Yuan
Rok vydání:	2009
Předmět:	chemistry.chemical_compound Quenching (fluorescence) Ketyl Aqueous solution chemistry Colloidal gold General Chemical Engineering Metal ions in aqueous solution Micellar solutions Benzophenone Nanoparticle General Chemistry Photochemistry
Zdroj:	Pure and Applied Chemistry. 81:635-647
ISSN:	1365-3075 0033-4545
DOI:	10.1351/pac-con-08-09-11
Popis:	The photochemistry of aromatic ketones through the Norrish type I cleavage of benzoins and via photoreduction generates ketyl radicals that readily reduce many metal ions, including silver and gold. Reduction to Au(0) and Ag(0) leads to the spontaneous formation of nanoparticles (NPs) in aqueous or micellar solutions. Careful consideration of kinetic factors to minimize triplet quenching by metal ions can lead to rapid NP generation. These materials are quite stable and have interesting reactivities due to the essentially unprotected characteristics of the surface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f89f081218180444710d7cba77e1631a https://doi.org/10.1351/pac-con-08-09-11 Zobrazit plný text záznamu Plný text ve formátu PDF