Direct force measurements between silica particles in aqueous solutions of ionic liquids containing 1-butyl-3-methylimidazolium (BMIM)

被引：18

作者：

Valmacco, Valentina ^{[1
]}

Trefalt, Gregor ^{[1
]}

Maroni, Plinio ^{[1
]}

Borkovec, Michal ^{[1
]}

机构：

[1] Univ Geneva, Dept Inorgan & Analyt Chem, CH-1205 Geneva, Switzerland

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 25期

基金：

瑞士国家科学基金会;

关键词：

GOLD NANOPARTICLES; DILUTE ELECTROLYTE; HAMAKER CONSTANTS; HYDRATION FORCES; GLASS SURFACES; DOUBLE-LAYER; AGGREGATION; STABILITY; TEMPERATURE; ADSORPTION;

D O I：

10.1039/c5cp02292d

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：

Direct force measurements between silica particles were carried out using the colloidal probe technique, which is based on an atomic force microscope (AFM). The forces were investigated in aqueous solutions of ionic liquids (ILs) containing 1-butyl-3-methylimidazolium (BMIM) cations and chloride, dicyanamide, and thiocyanate as anions up to concentrations of about 1 M. The results were compared with the simple electrolyte KCl. ILs behave similar to the simple electrolyte at low concentrations, as the ILs dissociate fully into ions, and they lead to repulsive double layer forces. At higher concentrations, attractive van der Waals forces set in, but they are enhanced in the presence of ILs by additional attractive force, whose strength depends on the type of IL. This additional attraction probably originates from the interaction of adsorbed IL layers.

引用

页码：16553 / 16559

页数：7

共 65 条

[21] MEASUREMENT OF FORCES IN LIQUIDS USING A FORCE MICROSCOPE [J].

DUCKER, WA ;

SENDEN, TJ ;

PASHLEY, RM .

LANGMUIR, 1992, 8 (07) :1831-1836

[22] Forces within Single Pairs of Charged Colloids in Aqueous Solutions of Ionic Liquids as Studied by Optical Tweezers [J].

Elmahdy, Mahdy M. ;

Gutsche, Christof ;

Kremer, Friedrich .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (45) :19452-19458

[23] Measurements of dispersion forces between colloidal latex particles with the atomic force microscope and comparison with Lifshitz theory [J].

Elzbieciak-Wodka, Magdalena ;

Popescu, Mihail N. ;

Ruiz-Cabello, F. Javier Montes ;

Trefalt, Gregor ;

Maroni, Plinio ;

Borkovec, Michal .

JOURNAL OF CHEMICAL PHYSICS, 2014, 140 (10)

[24] Interaction force between an air bubble and a hydrophilic spherical particle in water, measured by the colloid probe technique [J].

Englert, A. H. ;

Krasowska, M. ;

Fornasiero, D. ;

Ralston, J. ;

Rubio, J. .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2009, 92 (3-4) :121-127

[25] Microslips to "Avalanches" in Confined, Molecular Layers of Ionic Liquids [J].

Espinosa-Marzal, R. M. ;

Arcifa, A. ;

Rossi, A. ;

Spencer, N. D. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2014, 5 (01) :179-184

[26] Ionic liquids behave as dilute electrolyte solutions [J].

Gebbie, Matthew A. ;

Valtiner, Markus ;

Banquy, Xavier ;

Fox, Eric T. ;

Henderson, Wesley A. ;

Israelachvili, Jacob N. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2013, 110 (24) :9674-9679

[27] DOUBLE-LAYER AND HYDRATION FORCES MEASURED BETWEEN SILICA SHEETS SUBJECTED TO VARIOUS SURFACE TREATMENTS [J].

GRABBE, A ;

HORN, RG .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1993, 157 (02) :375-383

[28] Electrokinetic and direct force measurements between silica and mica surfaces in dilute electrolyte, solutions [J].

Hartley, PG ;

Larson, I ;

Scales, PJ .

LANGMUIR, 1997, 13 (08) :2207-2214

[29] At the interface: solvation and designing ionic liquids [J].

Hayes, Robert ;

Warr, Gregory G. ;

Atkin, Rob .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (08) :1709-1723

[30] MULTISITE PROTON ADSORPTION MODELING AT THE SOLID-SOLUTION INTERFACE OF (HYDR)OXIDES - A NEW APPROACH .2. APPLICATION TO VARIOUS IMPORTANT (HYDR)OXIDES [J].

HIEMSTRA, T ;

DEWIT, JCM ;

VANRIEMSDIJK, WH .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1989, 133 (01) :105-117

← 1 2 3 4 5 6 7 →