Comment on "Recalculation, Evaluation and Prediction of Surface Complexation Constants for Metal Adsorption on Iron and Manganese Oxides." (includes response)
Article Abstract:
The method of calculating the values of cation sorption constants that were compiled by Robert W. Smith and Everett A. Jenne will not yield consistent results. The constants were calculated for use with the triple-layer model and were derived from surface complexation constants reported in the literature. The four sources of inconsistency in the surface complexation constant calculations are surface site density, surface loading, surface acidity constants used and surface species used. A reply by Robert W. Smith and Everett A. Jones is also included.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
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Application of the surface complexation concept to complex mineral assemblages
Article Abstract:
Investigations into the adsorption of Zn(2+) by the sediment revealed that besides the dependence of the adsorption process on pH, modeling revealed the role of surface area and site density parameters. Despite the modeling of such factors, the resulting data still failed to adequately model the adsorption process, especially in terms of modeling the process under the component additivity approach.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Effect of component oxide interaction on the adsorption properties of mixed oxides
Article Abstract:
The aqueous suspension of the mixed oxides Al(OH)3/SiO2 and Fe(OH)3/SiO2 was studied using transmission electron microscopy to determine the influence of oxide interaction on their adsorption characteristics. The results showed that the interaction between Al(OH)3 and SiO2 was stronger than that observed in Fe(OH)3 and SiO2. In addition, there was enhanced Cd+ and Ca2+ adsorption.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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