Photochemical routes to silver and gold nanoparticles

被引：85

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.

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收藏

页码：635 / 647

页数：13

相关论文

共 20 条

[1] SYNTHESIS OF THIOL-DERIVATIZED GOLD NANOPARTICLES IN A 2-PHASE LIQUID-LIQUID SYSTEM [J].

BRUST, M ;

WALKER, M ;

BETHELL, D ;

SCHIFFRIN, DJ ;

WHYMAN, R .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (07) :801-802

[2] Zeolite-based photocatalysts [J].

Corma, A ;

Garcia, H .

CHEMICAL COMMUNICATIONS, 2004, (13) :1443-1459

[3] TEMPERATURE-DEPENDENCE OF THE PHOTOCHEMISTRY OF ARYL-ALKYL KETONES [J].

ENCINA, MV ;

LISSI, EA ;

LEMP, E ;

ZANOCCO, A ;

SCAIANO, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (07) :1856-1860

[4] Radiation-induced and chemical formation of gold clusters [J].

Gachard, E ;

Remita, H ;

Khatouri, J ;

Keita, B ;

Nadjo, L ;

Belloni, J .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (11) :1257-1265

[5] Photochemistry and photophysics of α-hydroxy ketones [J].

Jockusch, S ;

Landis, MS ;

Freiermuth, B ;

Turro, NJ .

MACROMOLECULES, 2001, 34 (06) :1619-1626

[6] Alloy formation of gold-silver nanoparticles and the dependence of the plasmon absorption on their composition [J].

Link, S ;

Wang, ZL ;

El-Sayed, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (18) :3529-3533

[7] Facile photochemical synthesis of unprotected aqueous gold nanoparticles [J].

McGilvray, Katherine L. ;

Decan, Matthew R. ;

Wang, Dashan ;

Scaiano, Juan C. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (50) :15980-15981

[8] HYDROGEN ABSTRACTION BY TERT-BUTOXY RADICALS - LASER PHOTOLYSIS AND ELECTRON-SPIN RESONANCE STUDY [J].

PAUL, H ;

SMALL, RD ;

SCAIANO, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (14) :4520-4527

[9] Magnetic field control of photoinduced silver nanoparticle formation [J].

Scaiano, J. C. ;

Aliaga, Carolina ;

Maguire, Steven ;

Wang, Dashan .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (26) :12856-12859

[10]

Scaiano J.C., 1973, J PHOTOCHEM, V2, P81