Effect of charged colloidal particles on adsorption of surfactants at oil-water interface

Weixing Wang; Zhiang Zhou; K. Nandakumar; Zhenghe Xu; Jacob H. Masliyah

doi:10.1016/j.jcis.2004.03.049

Effect of charged colloidal particles on adsorption of surfactants at oil-water interface

Weixing Wang, Zhiang Zhou, K. Nandakumar, Zhenghe Xu, Jacob H. Masliyah^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

A change of oil/water interfacial tension in the presence of cationic or anionic surfactants in an organic phase was observed due to the addition of charged fine solids in the aqueous phase. The charged fine solids in the aqueous phase adsorb surfactants diffused from the oil phase, thereby causing an increase in the bulk equilibrium surfactant concentration in the aqueous phase, governed by the Stern-Grahame equation. Consequently, surfactant adsorption at the oil-water interface increases, which was demonstrated from the measured reduction of the oil-water interfacial tension. The increased surfactant partition in the aqueous phase in the presence of the charged particles was confirmed by the measured decrease in the surface tension for the collected aqueous solution after solids removal, as compared with the cases without solids addition.

Original language	English
Pages (from-to)	625-630
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	274
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2004.03.049
State	Published - 15 Jun 2004
Externally published	Yes

Keywords

Alumina
Dodecylamine
Emulsion
Interfacial tension
Kaolinite
Palmitic acid
Silica

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10.1016/j.jcis.2004.03.049

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title = "Effect of charged colloidal particles on adsorption of surfactants at oil-water interface",

abstract = "A change of oil/water interfacial tension in the presence of cationic or anionic surfactants in an organic phase was observed due to the addition of charged fine solids in the aqueous phase. The charged fine solids in the aqueous phase adsorb surfactants diffused from the oil phase, thereby causing an increase in the bulk equilibrium surfactant concentration in the aqueous phase, governed by the Stern-Grahame equation. Consequently, surfactant adsorption at the oil-water interface increases, which was demonstrated from the measured reduction of the oil-water interfacial tension. The increased surfactant partition in the aqueous phase in the presence of the charged particles was confirmed by the measured decrease in the surface tension for the collected aqueous solution after solids removal, as compared with the cases without solids addition.",

keywords = "Alumina, Dodecylamine, Emulsion, Interfacial tension, Kaolinite, Palmitic acid, Silica",

author = "Weixing Wang and Zhiang Zhou and K. Nandakumar and Zhenghe Xu and Masliyah, {Jacob H.}",

note = "Funding Information: Financial support for this work provided by Alberta Oil Sands Technology and Research Authority and the NSERC-Industry Chair in Oil Sands Engineering (held by JHM) is gratefully acknowledged.",

year = "2004",

month = jun,

day = "15",

doi = "10.1016/j.jcis.2004.03.049",

language = "英语",

volume = "274",

pages = "625--630",

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number = "2",

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T1 - Effect of charged colloidal particles on adsorption of surfactants at oil-water interface

AU - Wang, Weixing

AU - Zhou, Zhiang

AU - Nandakumar, K.

AU - Xu, Zhenghe

AU - Masliyah, Jacob H.

N1 - Funding Information: Financial support for this work provided by Alberta Oil Sands Technology and Research Authority and the NSERC-Industry Chair in Oil Sands Engineering (held by JHM) is gratefully acknowledged.

PY - 2004/6/15

Y1 - 2004/6/15

N2 - A change of oil/water interfacial tension in the presence of cationic or anionic surfactants in an organic phase was observed due to the addition of charged fine solids in the aqueous phase. The charged fine solids in the aqueous phase adsorb surfactants diffused from the oil phase, thereby causing an increase in the bulk equilibrium surfactant concentration in the aqueous phase, governed by the Stern-Grahame equation. Consequently, surfactant adsorption at the oil-water interface increases, which was demonstrated from the measured reduction of the oil-water interfacial tension. The increased surfactant partition in the aqueous phase in the presence of the charged particles was confirmed by the measured decrease in the surface tension for the collected aqueous solution after solids removal, as compared with the cases without solids addition.

AB - A change of oil/water interfacial tension in the presence of cationic or anionic surfactants in an organic phase was observed due to the addition of charged fine solids in the aqueous phase. The charged fine solids in the aqueous phase adsorb surfactants diffused from the oil phase, thereby causing an increase in the bulk equilibrium surfactant concentration in the aqueous phase, governed by the Stern-Grahame equation. Consequently, surfactant adsorption at the oil-water interface increases, which was demonstrated from the measured reduction of the oil-water interfacial tension. The increased surfactant partition in the aqueous phase in the presence of the charged particles was confirmed by the measured decrease in the surface tension for the collected aqueous solution after solids removal, as compared with the cases without solids addition.

KW - Alumina

KW - Dodecylamine

KW - Emulsion

KW - Interfacial tension

KW - Kaolinite

KW - Palmitic acid

KW - Silica

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DO - 10.1016/j.jcis.2004.03.049

M3 - 文章

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AN - SCOPUS:2342547014

SN - 0021-9797

VL - 274

SP - 625

EP - 630

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 2

ER -

Effect of charged colloidal particles on adsorption of surfactants at oil-water interface

Abstract

Keywords

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