Electrophoretic mobility and stability of SiO2 nanoparticles in the solutions of AOT in n-hexadecane-chloroform mixtures

被引：5
|
作者：
Shaparenko, Nikita O. [1 ]
Demidova, Marina G. [1 ]
Bulavchenko, Alexander, I [1 ]
机构：
[1] Nikolaev Inst Inorgan Chem SB RAS, 3 Acad Lavrentiev Ave, Novosibirsk 630090, Russia
来源：
ELECTROPHORESIS | 2021年 / 42卷 / 16期
基金：
俄罗斯基础研究基金会;
关键词：
AOT; Electrokinetic potential; Mobility; Theory DLVO; VAN-DER-WAALS; SILICA NANOPARTICLES; HAMAKER CONSTANTS; ADSORPTION; PARTICLE; CHARGE;
D O I：
10.1002/elps.202100060
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Electrophoretic mobility of SiO2 nanoparticles in a n-hexadecane-chloroform mixture depending on AOT concentration and chloroform content was determined. It was shown that an increase in chloroform content and a decrease in AOT concentration cause a growth in electrophoretic mobility. The use of the values of Debye lengths (characteristic thickness) of the diffuse part of the electric double layer (EDL) that were determined previously allowed us to calculate the electrokinetic potential and to evaluate the stability of organosols. The obtained data were in good correlation with the dynamics of temporal changes of hydrodynamic radius and the intensity of light scattering. Organosols may be used for heteroaggregation (sorption) of Au and Ag nanoparticles on SiO2.
引用
收藏
页码：1648 / 1654
页数：7
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