Analytical model for charge properties of silica particles

被引：29
|
作者：
Atalay, Selcuk [1 ]
Ma, Yu [2 ]
Qian, Shizhi [1 ]
机构：
[1] Old Dominion Univ, Inst Micronano Technol, Norfolk, VA 23529 USA
[2] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2014年 / 425卷
基金：
美国国家科学基金会;
关键词：
Surface charge density; Zeta potential; Surface chemistry; Charge regulation; TRANSPORT; SURFACES;
D O I：
10.1016/j.jcis.2014.03.044
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：
An analytical model for surface charge density and zeta potential of silica particles is derived and verified. The model takes into account surface chemistry reactions of the silanol groups and multiple ionic species. The predictions are in good agreement with the experimental data available from the literature. Surface charge density and zeta potential of silica particles strongly depend on both pH and background salt concentration of the aqueous solution. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：128 / 130
页数：3
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