Investigation of the specific adsorption of sulfate ions on powdered TiO2

The specific adsorption of radiolabeled sulfate ions from perchlorate supporting electrolyte onto TiO2 powder (anatase) has been investigated. The pH and concentration dependence of the adsorption was determined. Langmuir-like adsorption behavior similar to that on other oxides was found. From the p...

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Veröffentlicht in:	Journal of colloid and interface science 2003-05, Vol.261 (2), p.580-583
1. Verfasser:	HORANYI, G
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Exact sciences and technology General and physical chemistry Solid-liquid interface Surface physical chemistry
Online-Zugang:	Volltext
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Zusammenfassung:	The specific adsorption of radiolabeled sulfate ions from perchlorate supporting electrolyte onto TiO2 powder (anatase) has been investigated. The pH and concentration dependence of the adsorption was determined. Langmuir-like adsorption behavior similar to that on other oxides was found. From the pH dependence it follows that the protonation of the surface should precede the specific anion adsorption. The results obtained are compared with those reported for TiO2 bulk electrodes.
ISSN:	0021-9797 1095-7103
DOI:	10.1016/S0021-9797(03)00084-5