TY - JOUR
T1 - Adsorption of copper, nickel, and cobalt by oxide adsorbents from aqueous ammoniacal solutions
AU - Fuerstenau, D. W.
AU - Osseo-Asare, K.
N1 - Funding Information:
The authors acknowledge the National Science Foundation for the support of this research. This paper is based on part of the Ph.D. dissertation of K. Osseo-Asare at the University of California.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1987/8
Y1 - 1987/8
N2 - 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.
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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U2 - 10.1016/0021-9797(87)90487-5
DO - 10.1016/0021-9797(87)90487-5
M3 - Article
AN - SCOPUS:0023400339
SN - 0021-9797
VL - 118
SP - 524
EP - 542
JO - Journal of Colloid And Interface Science
JF - Journal of Colloid And Interface Science
IS - 2
ER -