Photochemical routes to silver and gold nanoparticles

被引：84
|
作者：
Scaiano, Juan C. [1 ]
Billone, Paul [1 ]
Gonzalez, Carlos M. [1 ]
Maretti, Luca [1 ]
Marin, M. Luisa [1 ]
McGilvray, Katherine L. [1 ]
Yuan, Nathan [1 ]
机构：
[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada
来源：
PURE AND APPLIED CHEMISTRY | 2009年 / 81卷 / 04期
关键词：
nanomaterials; nanoparticles; photochemistry; benzophenone; particle synthesis; HYDROGEN ABSTRACTION; DEPENDENCE; RADICALS; KETONES;
D O I：
10.1351/PAC-CON-08-09-11
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：635 / 647
页数：13
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