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Formation of Ternary Surface Complexes by Adsorption of 2,2′-Bipyridine onto Silica Modified with Copper Ions

✍ Scribed by C.-W. Schläpfer; N.N. Vlasova; A.A. Svezhentsova

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
55 KB
Volume
235
Category
Article
ISSN
0021-9797

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✦ Synopsis

The adsorption of 2,2'-bipyridine on a copper-containing silica surface has been studied. The equilibrium of bipyridine binding to surface copper ions are well reproduced by the constants for the formation of ternary surface complexes from an aqueous solution containing copper ions and bipyridine. This indicates clearly that under experimental conditions all reactions are reversible and speciation is controlled by thermodynamics. Copyright 2001 Academic Press.

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