Electrosurface Properties of Hydr(oxides) and Oxide Nanostructures in 1 : 1 Electrolyte Solutions: 1. Adsorption Characteristics of Boehmite, Goethite, and Silicon Dioxide |
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| Authors: | A. V. Klebanov N. F. Bogdanova L. E. Ermakova M. P. Sidorova M. G. Osmolovskii |
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| Affiliation: | (1) Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, Petrodvorets, 198504, Russia |
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| Abstract: | The adsorption of potential-determining ions on aluminum and iron hydroxides and silicon dioxide was measured in KCl and NaCl background solutions. It was shown that dependences of the adsorption on pH and the concentration of a background 1 : 1 electrolyte (NaCl) have the shape characteristic of oxide surfaces; the of values pHPZCwere determined. Results of adsorption measurements were used for the determination of constants of surface reactions and adsorption potentials of ions in terms of the 2-pK model. |
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