Ion exchange and structural properties of a new cyanoferrate mesoporous silica material for Cs removal from natural saline waters
| Autor: | Yves Barré, Emmanuelle Brackx, Caroline de Dieuleveult, Agnès Grandjean, Laurent De Windt, Caroline Michel |
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| Přispěvatelé: | Centre de Géosciences (GEOSCIENCES), Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire des Procédés Supercritiques et de Décontamination, Commisariat de l'Energie Atomique, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), MINES ParisTech - École nationale supérieure des mines de Paris |
| Rok vydání: | 2017 |
| Předmět: |
Ion exchange
Chemistry Process Chemistry and Technology Potassium Inorganic chemistry chemistry.chemical_element Sorption Context (language use) 02 engineering and technology Mesoporous silica 021001 nanoscience & nanotechnology 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 6. Clean water 0104 chemical sciences chemistry.chemical_compound Adsorption [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Chemical Engineering (miscellaneous) Seawater Ferrocyanide 0210 nano-technology Waste Management and Disposal |
| Zdroj: | Journal of Environmental Chemical Engineering Journal of Environmental Chemical Engineering, 2017, 5, pp.810-817 Journal of Environmental Chemical Engineering, Elsevier, 2017, 5, pp.810-817 |
| ISSN: | 2213-3437 2213-2929 |
| DOI: | 10.1016/j.jece.2016.12.033 |
| Popis: | The demand for effective and inexpensive treatment for decontamination of waters from radionuclides, such as 137 Cs, is presently high. In this context a selective adsorbent material for Cs (SORBMATECH 1 202) was designed, consisting of potassium/copper ferrocyanide nanoparticles deposited in the mesoporosity of silica grains. Several batch experiments were carried out in order to obtain kinetic and thermodynamic data concerning the ion exchange. Isotherms and measurements of distribution coefficients (K d,Cs ) in waters of increasing salinity (pure water, Ca-bicarbonate fresh water and seawater) were conducted in a radioactive environment. This study shows a fast ion-exchange kinetics ( |
| Databáze: | OpenAIRE |
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