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Shao H, Chang J, Lu Z, Luo B, Grundy JS, Xie G, Xu Z, Liu Q. Probing Anisotropic Surface Properties of Illite by Atomic Force Microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6532-6539. [PMID: 31008608 DOI: 10.1021/acs.langmuir.9b00270] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
For the purpose of understanding the colloidal behaviors of illite in mineral processing, probing the surface charging property of illite is of great significance. This research explored the edge and basal surfaces of illite using an atomic force microscope (AFM). The interaction forces between Si/Si3N4 probes and illite edge/basal surfaces were measured, respectively, at different pH values in 10 mM KCl solutions. Theoretical Derjaguin-Landau-Verwey-Overbeek forces were matched up with the measured forces to derive the surface potentials of the two surfaces. On the illite basal surface, an attractive force occurred at pH 3.0, while repulsive forces dominated from pH 5.0 to 10.0. On the illite edge surface, a slight attractive force was also obtained at pH 3.0. However, the interaction changed into repulsion at pH 5.0, and this repulsive force increased gradually from pH 6.0 to 10.0. Illite basal and edge surfaces were both negatively charged, but the basal surface exhibited more negative charges than the edge surface from pH 3.0 to 10.0. Increasing solution pH from 3.0 to 10.0, there was no detection of the point of zero charge (PZC) of the illite basal surface; however, the PZC of the illite edge surface should have occurred at a pH slightly lower than 3.0. This is the first time that surface potentials of illite edge and basal surfaces were attained separately by direct force measurements. These findings provide insights into the colloidal behaviors of illite in mineral processing and oil sands extraction.
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Affiliation(s)
- Huaizhi Shao
- Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology , China University of Mining and Technology , Xuzhou 221116 , Jiangsu , China
| | - Jing Chang
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
| | - Zhenzhen Lu
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
| | - Binbin Luo
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
| | - James S Grundy
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
| | - Guangyuan Xie
- Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology , China University of Mining and Technology , Xuzhou 221116 , Jiangsu , China
| | - Zhenghe Xu
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
| | - Qingxia Liu
- Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology , China University of Mining and Technology , Xuzhou 221116 , Jiangsu , China
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton T6G 1H9 , Alberta , Canada
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Development of in situ soft colloidal probe atomic force microscopy for probing the adhesion between wood extractives and model surfaces. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tham YY, Molino PJ, Higgins MJ, Stack KR, Richardson DE, Lewis TW. The study of deposition of wood extractives and model compound colloids onto chromium and cellulose surfaces using quartz crystal microbalance with dissipation (QCM-D). Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wåhlander M, Hansson-Mille PM, Swerin A. Superhydrophobicity: Cavity growth and wetting transition. J Colloid Interface Sci 2015; 448:482-91. [DOI: 10.1016/j.jcis.2015.02.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/18/2015] [Accepted: 02/18/2015] [Indexed: 11/25/2022]
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Hong X, Mo M, Wu X, Willing G, Hui KS, Hui KN. An Effective Zeta Potential Fitting Model for Sphere-Plate Interaction Force in Nanoparticle Suspensions. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2012.759509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yan L, Masliyah JH, Xu Z. Understanding suspension rheology of anisotropically-charged platy minerals from direct interaction force measurement using AFM. Curr Opin Colloid Interface Sci 2013. [DOI: 10.1016/j.cocis.2013.02.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hansson PM, Hormozan Y, Brandner BD, Linnros J, Claesson PM, Swerin A, Schoelkopf J, Gane PA, Thormann E. Hydrophobic pore array surfaces: Wetting and interaction forces in water/ethanol mixtures. J Colloid Interface Sci 2013; 396:278-86. [DOI: 10.1016/j.jcis.2013.01.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 01/14/2013] [Accepted: 01/20/2013] [Indexed: 10/27/2022]
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Yan L, Englert AH, Masliyah JH, Xu Z. Determination of anisotropic surface characteristics of different phyllosilicates by direct force measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:12996-13007. [PMID: 21961691 DOI: 10.1021/la2027829] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
To fundamentally understand the electrokinetic behavior of clay minerals, it is necessary to study the anisotropic surface charge properties of clay surfaces. In this study, two 2:1 layer natural minerals, talc and muscovite, were chosen as representatives of magnesium and aluminum phyllosilicate minerals, respectively. The molecularly smooth basal planes of both platy minerals were obtained by cleavage along the basal planes, while suitable edge surfaces were prepared by an ultramicrotome cutting technique. Silicon nitride atomic force microscopy tip was used as a probe to study the interaction forces between the tip and clay basal/edge surfaces in aqueous solutions of various pH values. The measured interaction force profiles between the tip and clay basal/edge surfaces were fitted with the classical DLVO (Derjaguin-Landau-Verwey-Overbeek) theory, which allows direct determination of electrical surface potential of talc and muscovite surfaces. The surface potential of muscovite basal planes was found to be significantly more negative than the basal plane of talc, both being pH insensitive. In contrast, the surface potential of edge surfaces was highly pH-dependent, exhibiting a point of zero charge (PZC) at pH 7.5 and 8.1 for edges of muscovite and talc, respectively. The observed differences in surface potential of basal planes and edge surfaces for both talc and muscovite are closely related to their crystal structure and ionization characteristics. The protonation reactivity and the contribution of each surface group to the surface charging behavior are modeled using their protonation constants.
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Affiliation(s)
- Lujie Yan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G6
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Gribble CM, Matthews GP, Gantenbein D, Turner A, Schoelkopf J, Gane PA. Adsorption of surfactant-rich stickies onto mineral surfaces. J Colloid Interface Sci 2010; 352:483-90. [DOI: 10.1016/j.jcis.2010.07.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 07/23/2010] [Accepted: 07/24/2010] [Indexed: 11/30/2022]
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Ridgway CJ, Schoelkopf J, Gane PAC. Competitive Absorption of Polar and Non-Polar Liquids into Latex Bound Porous Structures of Fine Ground Calcium Carbonate. Transp Porous Media 2010. [DOI: 10.1007/s11242-010-9666-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wallqvist V, Claesson PM, Swerin A, Ostlund C, Schoelkopf J, Gane PAC. Influence of surface topography on adhesive and long-range capillary forces between hydrophobic surfaces in water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:9197-9207. [PMID: 19719221 DOI: 10.1021/la900759e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report on the interactions between a hydrophobic probe particle and surfaces with nanoscopic surface features. These surfaces have been prepared by spin-coating of nanoparticles and by polishing. The surface topography was characterized by AFM, using the methods of high-resolution imaging, low-resolution imaging using the probe particle, and by the rolling ball method. The spin-coated surfaces can be characterized as nanostructured due to the high density of nanoparticles that on a short length scale provides a regular pattern of crevices and hills. On these surfaces a larger waviness is also distinguished. In contrast, the polished surfaces display sharp nanoscopic peaks and hardly any crevices. In all cases the dominant force at short separations was found to be a capillary attraction due to the formation of an air/vapor condensate. Our data show that the large-scale waviness of the surface does not significantly influence the range and magnitude of the capillary attraction, but large local variations in these quantities are found. The large variation in adhesion force corresponds to a small variation in local contact angle of the capillary condensate at the surfaces. The report discusses how the nature of the surface topographical features influences the capillary attraction by influencing the local contact angle and by pinning of the three-phase contact line. The effect is clearly dependent on whether the surface features exist in the form of crevices or as extending ridges.
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Affiliation(s)
- Viveca Wallqvist
- YKI, Ytkemiska Institutet AB/Institute for Surface Chemistry, Box 5607, SE-114 86 Stockholm, Sweden.
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