A novel method for the templated synthesis of Ag2S hollow nanospheres in aqueous surfactant media

被引：23

作者：

Chaudhuri, Rajib Ghosh ^{[1
]}

Paria, Santanu ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Chem Engn, Rourkela 769008, Orissa, India

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2012年 / 369卷

关键词：

Core/shell; Hollow nanoparticles; Ag2S; Quantum yield; SILICA NANOPARTICLES; GOLD NANOPARTICLES; ORDERED ARRAYS; QUANTUM DOTS; SPHERES; SEMICONDUCTOR; PARTICLES; SULFIDE; SHELL; NANOSTRUCTURES;

D O I：

10.1016/j.jcis.2011.11.064

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：

Ag2S is an important direct semiconductor material that receives considerable research interest because of its low toxicity and high chemical stability. This work reports an easy and novel route for the synthesis of hollow Ag2S particles by a sacrificial core method in surfactant containing aqueous media. Sulfur is used as a sacrificial core in this method and removed by dissolving in carbon disulfide. Core sulfur particles were synthesized in situ by acid catalyzed reaction of sodium thiosulphate in aqueous surfactant media. The particles were characterized by using different instrumental techniques, showing 67% improved light emission capacity in terms of quantum yield compared to solid Ag2S particles. The same route is also suggested to prepare other nanoparticles. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：117 / 122

页数：6

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