Purification of Aqueous Suspensions from Colloidal Particles by Electro-Adsorption on Porous Carbon Electrodes

Dorrit Hall; Zvi Priel; Yoram Oren; Abraham Soffer

doi:10.1080/01496398708068996

Purification of Aqueous Suspensions from Colloidal Particles by Electro-Adsorption on Porous Carbon Electrodes

Dorrit Hall, Zvi Priel, Yoram Oren, Abraham Soffer

Department of Chemistry

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

5 Scopus citations

Abstract

The electrically induced adsorption of carboxylated colloidal particles from aqueous suspension on a carbon electrode was studied. Due to high colloid to electrode charge density ratio, adsorption is effected only to a small extent when the electrode potential is varied within the double layer potential range. At extreme potentials where water is involved in Faradaic reactions, colloid adsorption occurs due to pH variations. The process may be attractive for purification of suspensions from fine particles since no chemicals have to be added in order to induce adsorption or desorption of the colloid.

Original language	English
Pages (from-to)	1017-1027
Number of pages	11
Journal	Separation Science and Technology
Volume	22
Issue number	2-3
DOIs	https://doi.org/10.1080/01496398708068996
State	Published - 1 Feb 1987

ASJC Scopus subject areas

Chemistry (all)
Chemical Engineering (all)
Process Chemistry and Technology
Filtration and Separation

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10.1080/01496398708068996

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title = "Purification of Aqueous Suspensions from Colloidal Particles by Electro-Adsorption on Porous Carbon Electrodes",

abstract = "The electrically induced adsorption of carboxylated colloidal particles from aqueous suspension on a carbon electrode was studied. Due to high colloid to electrode charge density ratio, adsorption is effected only to a small extent when the electrode potential is varied within the double layer potential range. At extreme potentials where water is involved in Faradaic reactions, colloid adsorption occurs due to pH variations. The process may be attractive for purification of suspensions from fine particles since no chemicals have to be added in order to induce adsorption or desorption of the colloid.",

author = "Dorrit Hall and Zvi Priel and Yoram Oren and Abraham Soffer",

note = "Funding Information: This study was supported by the Applied Research Foundation of the Israel Academy of Scicnces and llumanities.",

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T1 - Purification of Aqueous Suspensions from Colloidal Particles by Electro-Adsorption on Porous Carbon Electrodes

AU - Hall, Dorrit

AU - Priel, Zvi

AU - Oren, Yoram

AU - Soffer, Abraham

N1 - Funding Information: This study was supported by the Applied Research Foundation of the Israel Academy of Scicnces and llumanities.

PY - 1987/2/1

Y1 - 1987/2/1

N2 - The electrically induced adsorption of carboxylated colloidal particles from aqueous suspension on a carbon electrode was studied. Due to high colloid to electrode charge density ratio, adsorption is effected only to a small extent when the electrode potential is varied within the double layer potential range. At extreme potentials where water is involved in Faradaic reactions, colloid adsorption occurs due to pH variations. The process may be attractive for purification of suspensions from fine particles since no chemicals have to be added in order to induce adsorption or desorption of the colloid.

AB - The electrically induced adsorption of carboxylated colloidal particles from aqueous suspension on a carbon electrode was studied. Due to high colloid to electrode charge density ratio, adsorption is effected only to a small extent when the electrode potential is varied within the double layer potential range. At extreme potentials where water is involved in Faradaic reactions, colloid adsorption occurs due to pH variations. The process may be attractive for purification of suspensions from fine particles since no chemicals have to be added in order to induce adsorption or desorption of the colloid.

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U2 - 10.1080/01496398708068996

DO - 10.1080/01496398708068996

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JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 2-3

ER -

Purification of Aqueous Suspensions from Colloidal Particles by Electro-Adsorption on Porous Carbon Electrodes

Abstract

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