Synthesis of titania-coated silica nanoparticles using ono-ionic water-in-oil

被引：39
|
作者：
Fu, XA [1 ]
Qutubuddin, S [1 ]
机构：
[1] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2001年 / 178卷 / 1-3期
关键词：
TiO2; nanocoating; SiO2; particles; electrophoresis;
D O I：
10.1016/S0927-7757(00)00703-2
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：
Titania (TiO2) nanocoating on silica (SiO2) particles was obtained by controlled hydrolysis of titanium alkoxide precursors. Monodisperse spherical silica particles prepared by Stober method were used as the support. Isolated silica particles with uniform titania nanocoating were obtained by reacting appropriate alkoxide and water at ambient temperature. The thickness and uniformity of TiO2 coating were controlled by adjusting the concentrations of reactants and the amount of added SiO2. The samples were characterized using electron microscopy and electrophoresis. The surface coverage was estimated using isoelectric point (IEP) data. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：151 / 156
页数：6
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