Nanoparticle Adsorption at Liquid-Vapor Surfaces: Influence of Nanoparticle Thermodynamics, Wettability, and Line Tension

被引：44
|
作者：
Wi, Haeng Sub [1 ]
Cingarapu, Sreeram [2 ]
Klabunde, Ken J. [2 ]
Law, Bruce M. [1 ]
机构：
[1] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA
[2] Kansas State Univ, Dept Chem, Manhattan, KS 66506 USA
来源：
LANGMUIR | 2011年 / 27卷 / 16期
关键词：
CONTACT-ANGLE DETERMINATION; PARTICLE WETTABILITY; GOLD NANOPARTICLES; LIQUID/LIQUID; SURFACTANTS;
D O I：
10.1021/la201791g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We developed a statistical mechanical theory that describes the adsorption of nanoparticles (NPs) at liquid-vapor surfaces. This theory accounts for the surface to bulk NP thermodynamic equilibrium, as well as the NP mechanical equilibrium, wettability, and line tension at liquid-vapor surfaces. The theory is tested by examining the adsorption of 5 nm diameter dodecanethiol-ligated gold NPs at the liquid-vapor surface of a homologous series of n-alkane solvents, from n-nonane to n-octadecane, where the NP wettability decreases with an increasing n-alkane chain length.
引用
收藏
页码：9979 / 9984
页数：6
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