Adsorption of copper, nickel, and cobalt by oxide adsorbents from aqueous ammoniacal solutions

D. W. Fuerstenau, K. Osseo-Asare

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Experimental measurements of the uptake of Cu, Ni, and Co by oxides in aqueous ammoniacal solutions show that the adsorption behavior exhibits maxima and minima which depend on pH, ammonia concentration, metal cation, and the adsorbent. Electrophoretic studies on these systems indicate that oxide colloids may undergo as many as five charge reversals in aqueous ammoniacal solutions of hydrolyzable ammine complex-forming metal ions. For interpreting the behavior of these systems, a competitive adsorption model is presented that combines double-layer theory with properties of the adsorbent, the solvent medium, and the aqueous ionic species.

Original languageEnglish (US)
Pages (from-to)524-542
Number of pages19
JournalJournal of Colloid And Interface Science
Volume118
Issue number2
DOIs
StatePublished - Aug 1987

Fingerprint

Adsorbents
Oxides
Copper
Cobalt
Nickel
Adsorption
Colloids
Ammonia
Metal ions
Cations
Positive ions
Metals
nickel monoxide
cobalt oxide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

Cite this

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abstract = "Experimental measurements of the uptake of Cu, Ni, and Co by oxides in aqueous ammoniacal solutions show that the adsorption behavior exhibits maxima and minima which depend on pH, ammonia concentration, metal cation, and the adsorbent. Electrophoretic studies on these systems indicate that oxide colloids may undergo as many as five charge reversals in aqueous ammoniacal solutions of hydrolyzable ammine complex-forming metal ions. For interpreting the behavior of these systems, a competitive adsorption model is presented that combines double-layer theory with properties of the adsorbent, the solvent medium, and the aqueous ionic species.",
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Adsorption of copper, nickel, and cobalt by oxide adsorbents from aqueous ammoniacal solutions. / Fuerstenau, D. W.; Osseo-Asare, K.

In: Journal of Colloid And Interface Science, Vol. 118, No. 2, 08.1987, p. 524-542.

Research output: Contribution to journalArticle

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AB - Experimental measurements of the uptake of Cu, Ni, and Co by oxides in aqueous ammoniacal solutions show that the adsorption behavior exhibits maxima and minima which depend on pH, ammonia concentration, metal cation, and the adsorbent. Electrophoretic studies on these systems indicate that oxide colloids may undergo as many as five charge reversals in aqueous ammoniacal solutions of hydrolyzable ammine complex-forming metal ions. For interpreting the behavior of these systems, a competitive adsorption model is presented that combines double-layer theory with properties of the adsorbent, the solvent medium, and the aqueous ionic species.

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