Calculation from Spectrophotometric Data of Binding Parameters of Magnetic Iron Oxide Nanoparticles with Dyes
| Autor: | E. V. Dukhopelnikov, E. G. Bereznyak, D. A. Pesina, Natalia Gladkovskaya |
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| Rok vydání: | 2020 |
| Předmět: |
Eosin
010401 analytical chemistry Inorganic chemistry Langmuir adsorption model 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Binding constant 0104 chemical sciences chemistry.chemical_compound symbols.namesake Ultraviolet visible spectroscopy chemistry symbols Magnetic nanoparticles 0210 nano-technology Spectroscopy Tartrazine Iron oxide nanoparticles Superparamagnetism |
| Zdroj: | Journal of Applied Spectroscopy. 87:303-308 |
| ISSN: | 1573-8647 0021-9037 |
| Popis: | The possibility of using magnetic nanoparticles as an adsorbent for the effective removal of anionic dyes from aqueous solutions was investigated. The binding of eosin, tartrazine, and fast green with superparamagnetic Fe3O4 nanoparticles was studied using visible spectroscopy. The binding constant and site were obtained from spectrophotometric titration data using the Langmuir model for equilibrium binding. The high binding constants (~105 M–1) indicated that the magnetic nanoparticles held promise for removing anionic dyes from polluted waters. |
| Databáze: | OpenAIRE |
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