Synthesis of micron-SiO2@nano-Ag particles and their catalytic performance in 4-nitrophenol reduction

被引：113

作者：

Wang, Man ^{[1
]}

Tian, Di ^{[1
]}

Tian, Panpan ^{[1
]}

Yuan, Liangjie ^{[1
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2013年 / 283卷

关键词：

Micron-SiO2@nano-Ag particles; 4-Nitrophenol reduction; Catalytic activity; SILVER NANOPARTICLES; SILICA SPHERES; DEPOSITION; NANOSHELLS;

D O I：

10.1016/j.apsusc.2013.06.120

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：

Ag nanoparticles (Ag NPs) were deposited on the surface of micron silica spheres. The structure of the composite was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray analysis (EDX), transmission electron microscope (TEM) and inductively coupled plasma-atomic emission spectrometry (ICP-AES) method. The as-prepared micron-SiO2@nano-Ag particles were used as a catalyst in the borohydride reduction reaction of 4-nitrophenol (4-NP), which was detected by UV-vis absorption spectroscopy. The result showed that the composite particles presented a comparable catalytic activity with that of spherical silver nanoparticles. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：389 / 395

页数：7

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