Equilibrium studies and modeling on the removal of 56Mn(II) by alumina and kaolinite
| Autor: | J. M. Soriano-Rodríguez, C. López-Reyes, V. E. Badillo-Almaraz |
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| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
Health Toxicology and Mutagenesis Inorganic chemistry Single type Public Health Environmental and Occupational Health chemistry.chemical_element 02 engineering and technology Manganese 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Pollution Analytical Chemistry Adsorption Nuclear Energy and Engineering chemistry Kaolinite Radiology Nuclear Medicine and imaging 0210 nano-technology Spectroscopy 0105 earth and related environmental sciences Neutron activation |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 316:571-578 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | The removal of manganese from aqueous solutions on synthetic alumina and natural kaolinite was investigated in batch experiments as a function of pH. Experiments were carried out by using the radiotracer 56Mn, produced by neutron activation. Theoretical analysis of manganese removal was performed considering the existence of a single type of surface sites, denoted as ≡ SOH°. The uptake of manganese on kaolinite is similar to that on alumina, indicating that adsorption occurred on the variable-charged aluminol sites. Adsorption experiments suggest that ≡ AlOH° group is the most probable edge site for complexing manganese cations through mononuclear surface complexes (≡ AlOMn+) and (≡ AlOMnOH). |
| Databáze: | OpenAIRE |
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