UV photo-mediated size-focusing synthesis of silver nanoclusters

被引：10
|
作者：
Tominaga, C. [1 ]
Hasegawa, H. [1 ]
Yamashita, K. [1 ]
Arakawa, R. [1 ]
Kawasaki, H. [1 ]
机构：
[1] Kansai Univ, Fac Chem Mat & Bioengn, 3-3-35 Yamate Cho, Suita, Osaka 5648680, Japan
来源：
RSC ADVANCES | 2016年 / 6卷 / 77期
关键词：
METAL NANOPARTICLES; OPTICAL-PROPERTIES; CLUSTERS; AG; TEMPLATE; EXCITATION; THIOLATE; SUNLIGHT; GROWTH; LIGHT;
D O I：
10.1039/c6ra10892j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, we first report the photo-mediated size-focusing synthesis of glutathione (SG)-protected atomically precise Ag nanoclusters (Ag NCs). This photo-mediated size-focusing synthesis comprises a two-step protocol: (i) the reduction of Ag ions by NaBH4 to form polydisperse Ag NC intermediates and (ii) the subsequent photo-mediated size-focusing of these intermediates under 365 nm UV irradiation, producing monodisperse Ag-32(SG)(19) NCs. The role of light in the size-focusing synthesis of Ag NCs was investigated. We have demonstrated that 365 nm UV light irradiation under air/O-2 is an important parameter for the synthesis of well-defined Ag NCs via the photo-mediated size-focusing process due to the UV light/oxygen-sensitive properties of Ag.
引用
收藏
页码：73600 / 73604
页数：5
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