Synthesis and characterization of magnetic nano-material for removal of Eu3+ ions from aqueous solutions
| Autor: | R. R. Sheha, S. I. Moussa, N. A. Tadros, E. A. Saad |
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| Rok vydání: | 2012 |
| Předmět: |
Thermogravimetric analysis
Materials science Health Toxicology and Mutagenesis Inorganic chemistry Public Health Environmental and Occupational Health Analytical chemistry Sorption Pollution Analytical Chemistry Adsorption Nuclear Energy and Engineering Ionic strength Desorption Differential thermal analysis Radiology Nuclear Medicine and imaging Fourier transform infrared spectroscopy Thermal analysis Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 295:929-935 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-012-1908-6 |
| Popis: | Ferrite coated apatite magnetic nano-material was synthesized by a co-precipitation method and applied in removal of Eu(III) ions from aqueous solutions. The sample was firstly characterized using Fourier transform infrared spectroscopy, thermogravimetric analyses, deferential thermal analysis, X-ray powder diffraction, surface area by nitrogen adsorption and scanning electron microscopy. The results of physicochemical properties indicated that the synthesized magnetic nano-adsorbent had a crystalline structure and possessed a surface area amounted to 85.11 m2 g−1. Further, it was found to have high thermal resistance up to 600 °C and mean particle size of about 63 nm. The kinetic of Eu(III) sorption indicated that equilibrium state was attained within 12 h with using 5 mg as an appropriate nano-adsorbent weight. The sorption process was pH and ionic strength dependent. The maximum adsorbed amount of Eu(III) was attained at pH 2.5 with value reached to 157.14 mg g−1. Desorption of Eu(III) from loaded samples was studied using various eluents and maximum recovery was obtained using FeCl3 solution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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