Fabrication of hollow silica spheres using droplet templates derived from a miniemulsion technique

被引：55

作者：

Peng, Bo ^{[1
,2
]}

Chen, Min ^{[1
,2
]}

Zhou, Shuxue ^{[1
,2
]}

Wu, Limin ^{[1
,2
]}

Ma, Xiaohua ^{[1
,2
]}

机构：

[1] Chinese Educ Minist, Adv Coatings Res Ctr, Dept Mat Sci, Shanghai 200433, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 321卷 / 01期

关键词：

silica; hollow spheres; miniemulsion;

D O I：

10.1016/j.jcis.2007.12.044

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：

Hollow silica spheres have been successfully fabricated by means of a miniemulsion technique, in which miniemulsion droplets of tetraethoxysilane (TEOS) and octane were prepared with cetyltrimethylammonium bromide as a surfactant and hexadecane as a costabilizer and used as templates. As the TEOS diffused out from the droplets, it was hydrolyzed and condensed to form a silica shell at the oil/water interface. In this way, hollow silica spheres could be obtained directly since the mimemulsion droplets of octane could be evaporated very easily during the reaction process or the drying process; neither an additional dissolution nor a calcination process or additional surface modification of the templates were needed. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：67 / 73

页数：7

共 54 条

[1] Core/shell silica-based in-situ microencapsulation:: A self-templating method [J].