Hydration and hydrolysys of Sm3+ and Eu3+ in a clay interlayer: A neutron diffraction study with isotopic substitution

Radiochimica Acta

Volumn 96, Issue 9-11, 2008, Pages 679-683

  Sobolev, O ^a   Charlet, L ^a   Cuello, G ^b   Gehin, A ^a   Brendle, J ^c  

^a OBSERVATOIRE DE GRENOBLE   (France)

^b INSTITUT LAUE LANGEVIN   (France)

^c CNRS   (France)

Author keywords

Clay minerals; Europium; Hydration; Isotopic substitution; Montmorillonite; Neutron diffraction; Samarium

Indexed keywords

EID: 56649124576     PISSN: 00338230     EISSN: None     Source Type: Journal    
DOI: 10.1524/ract.2008.1553     Document Type: Conference Paper

References (14)

1. Güven, N.: Longevity of bentonite as buffer material in a nuclear-waste repository. Eng. Geol. 28, 233 (1990).
2. Bradbury, M. H., Baeyens, B.: Sorption of Eu on Na- and Ca-montmorillonites: Experimental investigations and modeling with cation exchange and surface complexation. Geochim. Cosmochim. Acta 66, 2325 (2002).
3. Mortland, M. M., Raman, K. V.: Surface acidity of smectites in relation to hydration, exchangeable cation, and structure. Clays Clay Mater. 16, 393 (1968).
4. Lynn, J. E.: The energy dependence of the neutron coherent scattering length of europium. J. Appl. Cryst. 22, 476 (1989).
5. Pitteloud, C., Powell, D. H., González, M. A., Cuello, G. J.: Neutron diffraction studies of ion coordination and interlayer water structure in smectite clays: lanthanide(III)-exchanged Wyoming montmorillonite. Colloids Surf. A Physiochem. Eng. Asp. 217, 129 (2003).
6. Pitteloud, C., Powell, D. H., Fischer, H. E.: The hydration structure of the Ni21 ion intercalated in montmorillonite clay: a neutron diffraction with isotopic substitution study. Phys. Chem. Chem. Phys. 3, 5567 (2001).
7. Sears, V. E: Neutron scattering lengths and cross sections. Neutron News 3, 26 (1992).
8. Reinholdt, M., Miehe-Brendle, J., Delmotte, L., Le Dred, R., Tuilier, M. H.: Synthesis and characterization of montmorillonite-type phyllosilicates in a fluoride medium. Clay Minerals 40, 177 (2005).
9. Fischer, H. E., Cuello, G. J., Palleau, P., Feltin, D., Barnes, A. C., Badyal, Y. S., Simonson, J. M.: D4c: A very high precision diffractometer for disordered materials. Appl. Phys. A 74, S160 (2002).
10. Chisholm-Brause, C., Conradson, S. D., Buscher, C. T., Eller, P. E., Morris, D. E.: Speciation of uranyl sorbed at multiple binding sites on montmorillonite. Geochim. Cosmochim. Acta 58, 3625 (1994).
11. Helm, L. and Merbach, A. E.: Structure and dynamics of lanthanide(III) ions in solution: a neutron scattering contribution. Eur. J. Solid State Inorg. Chem. 28, 245 (1991).
12. 133Cs vermiculites. J. Phys. Chem. 94, 8821 (1990).
13. Slade, P. G., Self, P. G., Quirk, J. P.: The interlayer structure of Lavermiculite. Clays Clay Miner. 46, 629 (1998).
14. Stumpf, T., Bauer, A., Coppin, F., Fanghänel, Th., Kim, I.: Inner-sphere, outer-sphere and ternary surface complexes: a TRLFS study of the sorption process of Eu(III) onto smectite and kaolinite. Radiochim. Acta 90, 345 (2002).