Specific adsorption of organic cations at the silver iodide-electrolyte interface

A. de Keizer; L. G J Fokkink

doi:10.1016/0166-6622(90)80150-3

Specific adsorption of organic cations at the silver iodide-electrolyte interface

A. de Keizer, L. G J Fokkink

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Abstract

The adsorption of monovalent tetrabutylammonium cations and bivalent bipyridinium cations diquat and paraquat on AgI has been studied as a function of surface charge density in 0.1 M indifferent (1-1) electrolyte. Adsorption results are analyzed according to the Frumkin-Fowler-Guggenheim isotherm. The model allows analysis of the several chemical and electrostatic free enthalpy contributions both to the lateral and to the adsorbent-adsorbate interactions. Hydrophobic interactions are shown to be the major non-Coulombic driving force for adsorption. The influence of adsorbate valency is consistently accounted for by the model.

Original language	English
Pages (from-to)	323-337
Number of pages	15
Journal	Colloids and Surfaces
Volume	51
Issue number	C
DOIs	https://doi.org/10.1016/0166-6622(90)80150-3
Publication status	Published - 1 Jan 1990
Externally published	Yes

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title = "Specific adsorption of organic cations at the silver iodide-electrolyte interface",

abstract = "The adsorption of monovalent tetrabutylammonium cations and bivalent bipyridinium cations diquat and paraquat on AgI has been studied as a function of surface charge density in 0.1 M indifferent (1-1) electrolyte. Adsorption results are analyzed according to the Frumkin-Fowler-Guggenheim isotherm. The model allows analysis of the several chemical and electrostatic free enthalpy contributions both to the lateral and to the adsorbent-adsorbate interactions. Hydrophobic interactions are shown to be the major non-Coulombic driving force for adsorption. The influence of adsorbate valency is consistently accounted for by the model.",

author = "{de Keizer}, A. and Fokkink, {L. G J}",

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T1 - Specific adsorption of organic cations at the silver iodide-electrolyte interface

AU - de Keizer, A.

AU - Fokkink, L. G J

PY - 1990/1/1

Y1 - 1990/1/1

N2 - The adsorption of monovalent tetrabutylammonium cations and bivalent bipyridinium cations diquat and paraquat on AgI has been studied as a function of surface charge density in 0.1 M indifferent (1-1) electrolyte. Adsorption results are analyzed according to the Frumkin-Fowler-Guggenheim isotherm. The model allows analysis of the several chemical and electrostatic free enthalpy contributions both to the lateral and to the adsorbent-adsorbate interactions. Hydrophobic interactions are shown to be the major non-Coulombic driving force for adsorption. The influence of adsorbate valency is consistently accounted for by the model.

AB - The adsorption of monovalent tetrabutylammonium cations and bivalent bipyridinium cations diquat and paraquat on AgI has been studied as a function of surface charge density in 0.1 M indifferent (1-1) electrolyte. Adsorption results are analyzed according to the Frumkin-Fowler-Guggenheim isotherm. The model allows analysis of the several chemical and electrostatic free enthalpy contributions both to the lateral and to the adsorbent-adsorbate interactions. Hydrophobic interactions are shown to be the major non-Coulombic driving force for adsorption. The influence of adsorbate valency is consistently accounted for by the model.

UR - http://www.scopus.com/inward/record.url?scp=0025512691&partnerID=8YFLogxK

U2 - 10.1016/0166-6622(90)80150-3

DO - 10.1016/0166-6622(90)80150-3

M3 - Article

AN - SCOPUS:0025512691

VL - 51

SP - 323

EP - 337

JO - Colloids and Surfaces

JF - Colloids and Surfaces

SN - 0166-6622

IS - C

ER -

Specific adsorption of organic cations at the silver iodide-electrolyte interface

Abstract

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