Anion specific adsorption on Fe2O3 and AlOOH nanoparticles in aqueous solutions: comparison with hematite and γ-Al2O3
| Autor: | Erika Kálmán, G. Horányi |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Aqueous solution
Supporting electrolyte Aluminium hydroxide Inorganic chemistry Hematite Phosphate Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Perchlorate chemistry.chemical_compound Colloid and Surface Chemistry Adsorption chemistry visual_art visual_art.visual_art_medium Sulfate |
| Zdroj: | Journal of Colloid and Interface Science. 269:315-319 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/s0021-9797(03)00750-1 |
| Popis: | The specific adsorption of radiolabeled sulfate and phosphate ions from perchlorate supporting electrolyte onto nano-AlOOH and nano-Fe(2)O(3) powder has been investigated. The pH dependence of the adsorption of anions onto nanopowders was compared with that of the same ions onto gamma-Al(2)O(3) and hematite. It was demonstrated that the character of the pH dependence of the adsorption is very similar in the comparable cases. It was found, however, that in contrast to the behavior of gamma-Al(2)O(3), nano-AlOOH dissolves at a significant rate at low pH values (pH |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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