A novel cetyltrimethyl ammonium silver bromide complex and silver bromide nanoparticles obtained by the surfactant counterion

被引：90

作者：

Liu, Xian-Hao

Luo, Xiao-Hong

Lu, Shu-Xia

Zhang, Jing-Chang ^{[1
]}

Cao, Wei-Liang

机构：

[1] Beijing Univ Chem Technol, Inst Modern Catalysis, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] China Lucky Film Corp, Inst Res & Dev, Baoding 071054, Hebei, Peoples R China

[3] Hebei Univ, Coll Math & Comp Sci, Baoding 071002, Hebei, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 307卷 / 01期

关键词：

complex; layer structure; thermal behavior; silver bromide; nanoparticle;

D O I：

10.1016/j.jcis.2006.11.051

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：

A novel cetyltrimethyl ammonium silver bromide (CTASB) complex has been prepared simply through the reaction of silver nitrate with cetyltrimethyl ammonium bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium silver bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG-DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 degrees C, the structure change of the complex took place and CTAB-capped nanosized silver bromide particles further formed. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：94 / 100

页数：7

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