Interactions between apolar, basic and acidic model oils and a calcite surface

Xiaoyan Liu, Karen Louise Feilberg, Wei Yan, Erling Halfdan Stenby, Esben Thormann*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

In this study, the atomic force microscopy colloidal probe technique was employed to investigate the interaction between apolar, basic and acidic model oil probes and a calcite surface in solutions containing different concentrations of NaCl, CaCl2 and Na2SO4. In the presence of SO42−, hydration and structural forces were observed between apolar model oil probes and a calcite surface on approach. Relatively low adhesion forces were observed between the basic model oil probes and the calcite surface, while higher adhesion forces were observed between the acidic model oil probes and the calcite surface. Furthermore, the adhesion forces between the basic model oil probes and the calcite surface significantly increased in the presence of SO42−, while the adhesion force between the acidic model oil probes and the calcite surface decreased in the presence of Ca2+ or SO42−. The differences in the adhesion forces are related to electrostatic attraction and ion bridging forces between the model oil probes and the calcite surface.
Original languageEnglish
JournalJournal of Dispersion Science and Technology
Volume40
Issue number11
Pages (from-to)1611-1617
Number of pages7
ISSN0193-2691
DOIs
Publication statusPublished - 2019

Keywords

  • Model oil
  • Surface forces
  • Ions effects
  • Calcite surface

Cite this

@article{675f4ff1adf541729079515e8aa978ea,
title = "Interactions between apolar, basic and acidic model oils and a calcite surface",
abstract = "In this study, the atomic force microscopy colloidal probe technique was employed to investigate the interaction between apolar, basic and acidic model oil probes and a calcite surface in solutions containing different concentrations of NaCl, CaCl2 and Na2SO4. In the presence of SO42−, hydration and structural forces were observed between apolar model oil probes and a calcite surface on approach. Relatively low adhesion forces were observed between the basic model oil probes and the calcite surface, while higher adhesion forces were observed between the acidic model oil probes and the calcite surface. Furthermore, the adhesion forces between the basic model oil probes and the calcite surface significantly increased in the presence of SO42−, while the adhesion force between the acidic model oil probes and the calcite surface decreased in the presence of Ca2+ or SO42−. The differences in the adhesion forces are related to electrostatic attraction and ion bridging forces between the model oil probes and the calcite surface.",
keywords = "Model oil, Surface forces, Ions effects, Calcite surface",
author = "Xiaoyan Liu and Feilberg, {Karen Louise} and Wei Yan and Stenby, {Erling Halfdan} and Esben Thormann",
year = "2019",
doi = "10.1080/01932691.2018.1523012",
language = "English",
volume = "40",
pages = "1611--1617",
journal = "Journal of Dispersion Science and Technology",
issn = "0193-2691",
publisher = "Taylor & Francis Inc.",
number = "11",

}

Interactions between apolar, basic and acidic model oils and a calcite surface. / Liu, Xiaoyan; Feilberg, Karen Louise; Yan, Wei; Stenby, Erling Halfdan; Thormann, Esben.

In: Journal of Dispersion Science and Technology, Vol. 40, No. 11, 2019, p. 1611-1617.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Interactions between apolar, basic and acidic model oils and a calcite surface

AU - Liu, Xiaoyan

AU - Feilberg, Karen Louise

AU - Yan, Wei

AU - Stenby, Erling Halfdan

AU - Thormann, Esben

PY - 2019

Y1 - 2019

N2 - In this study, the atomic force microscopy colloidal probe technique was employed to investigate the interaction between apolar, basic and acidic model oil probes and a calcite surface in solutions containing different concentrations of NaCl, CaCl2 and Na2SO4. In the presence of SO42−, hydration and structural forces were observed between apolar model oil probes and a calcite surface on approach. Relatively low adhesion forces were observed between the basic model oil probes and the calcite surface, while higher adhesion forces were observed between the acidic model oil probes and the calcite surface. Furthermore, the adhesion forces between the basic model oil probes and the calcite surface significantly increased in the presence of SO42−, while the adhesion force between the acidic model oil probes and the calcite surface decreased in the presence of Ca2+ or SO42−. The differences in the adhesion forces are related to electrostatic attraction and ion bridging forces between the model oil probes and the calcite surface.

AB - In this study, the atomic force microscopy colloidal probe technique was employed to investigate the interaction between apolar, basic and acidic model oil probes and a calcite surface in solutions containing different concentrations of NaCl, CaCl2 and Na2SO4. In the presence of SO42−, hydration and structural forces were observed between apolar model oil probes and a calcite surface on approach. Relatively low adhesion forces were observed between the basic model oil probes and the calcite surface, while higher adhesion forces were observed between the acidic model oil probes and the calcite surface. Furthermore, the adhesion forces between the basic model oil probes and the calcite surface significantly increased in the presence of SO42−, while the adhesion force between the acidic model oil probes and the calcite surface decreased in the presence of Ca2+ or SO42−. The differences in the adhesion forces are related to electrostatic attraction and ion bridging forces between the model oil probes and the calcite surface.

KW - Model oil

KW - Surface forces

KW - Ions effects

KW - Calcite surface

U2 - 10.1080/01932691.2018.1523012

DO - 10.1080/01932691.2018.1523012

M3 - Journal article

VL - 40

SP - 1611

EP - 1617

JO - Journal of Dispersion Science and Technology

JF - Journal of Dispersion Science and Technology

SN - 0193-2691

IS - 11

ER -