Size-controllable synthesis of calcium carbonate nanoparticles using aqueous foam films as templates

被引：18

作者：

Guo, Feng ^{[1
]}

Li, Ying ^{[1
]}

Xu, Hong-Xia ^{[1
]}

Zhao, Guo-Qing ^{[1
]}

He, Xiu-Juan ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Colloid & Interface Chem, State Educ Minist, Jinan 250100, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 27期

基金：

中国国家自然科学基金;

关键词：

nanoparticles; foam film; surfactant;

D O I：

10.1016/j.matlet.2007.03.075

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new method for the synthesis of calcium carbonate nanoparticles using two types of foam which are separately stabilized by surfactants with opposite change has been described here. In detail, one type of foam is formed by the aqueous solution of CaCl2 which contains the anionic surfactant alkyl polyoxyethylene alcohol sulfate sodium (AES) and the other is formed by the aqueous solution of Na2Co3 and the cationic surfactant alkyl polyoxyethylene quaternary ammonium chloride (AEAC). Two types of foam contact each other in a specially designed apparatus after draining completely, then Ca2+ and CO32- entrapped by the surfactant layers at the thin borders between the foam bubbles react and result in the generation of CaCO3 nanoparticles. TEM determination showed that perfect mono-dispersed spherical nanoparticles were obtained and the size of particles can be conveniently controlled by changing the concentration of CaCl2 and Na2CO3. Also, the mechanism leading to the synthesis of CaCO3 nanoparticles was discussed in detail. (c) 2007 Elsevier B.V All rights reserved.

引用

页码：4937 / 4939

页数：3

共 18 条

[1] Oriented growth of calcite controlled by self-assembled monolayers of functionalized alkanethiols supported on gold and silver [J].