Deposition of silver nanoparticles on silica spheres via ultrasound irradiation

被引：62

作者：

Ye, Xiaoyun ^{[1
]}

Zhou, Yuming ^{[1
]}

Chen, Jing ^{[1
]}

Sun, Yanqing ^{[1
]}

机构：

[1] SE Univ, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2007年 / 253卷 / 14期

基金：

中国国家自然科学基金;

关键词：

silica; silver; nanoparticle; deposition; ultrasound;

D O I：

10.1016/j.apsusc.2007.01.111

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Silver-decorated silica spheres of submicrometer-sized silica spheres with a core-shell structure were obtained based on a seed-mediated growth process, where silver nanoparticles were firstly formed from reducing Ag+ to Ag-0 in NN-dimethylformamide (DMF) in the presence of poly(vinylpyrrolidone) (PVP) as protective agent under ultrasound irradiation, followed by the growth of silver shell served silver nanoparticles as nucleation sites and formaldehyde as reducer. The results revealed that the terms of PVP addition and ultrasonic surroundings had great influence on the fabrication of silver seeds. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：6264 / 6267

页数：4

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