Kinetic and isotherm studies for the sorption of 134Cs and 60Co radionuclides onto supported titanium oxide
| Autor: | E. A. A. El-Shazly, G. A. Dakroury, H. H. Someda |
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| Rok vydání: | 2021 |
| Předmět: |
Sorbent
Aqueous solution Materials science Silica gel Health Toxicology and Mutagenesis Composite number Public Health Environmental and Occupational Health Sorption Pollution Analytical Chemistry Titanium oxide chemistry.chemical_compound Nuclear Energy and Engineering chemistry Chemical engineering Radiology Nuclear Medicine and imaging Freundlich equation Saturation (chemistry) Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 330:127-139 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-021-07956-w |
| Popis: | TiO2 is supported on silica gel surface (TiO2(0.5)/SiO2(0.5) composite) by physical mixing technique of TiO2 and silica gel with mole ratio 1:1.329 TiO2(0.5)/SiO2(0.5) composite characterized by physico-chemical techniques; (SEM), (FT-IR), (DTA-TG), porosity measurements, and X-ray diffraction and used as a sorbent for 134Cs and 60Co radionuclides from aqueous solutions. Optimization of the parameters affecting sorption process is studied. The saturation sorption capacity of TiO2(0.5)/SiO2(0.5) composite towards 134Cs at pH 9.5 and 60Co at pH 5.5 are 33.1 and 17.7 m g g-1, respectively. The adsorption reaction mechanism is applicable with Freundlich isotherm and the process is spontaneous and favorable. |
| Databáze: | OpenAIRE |
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