JRP 04-08

Partners

CNRS

CEA

FZD

Contact

Dr. S. Nikitenko
CNRS Université de Bordeaux 1, CNAB, UMR 5084 - P.O. Box 120 – Le Haut Vigneau – 33175 Gradignan Cedex - France
Phone +33 (0) 557 12 09 05
E-mail e-mail

Studies of the Chemical Forms of Actinides and Fission Products Adsorbed on Nanocrystalline Magnetite

Status

 
Terminated - Planned from March 2006 till September 2007

Goals

The goal of this joint research project is to study the chemical forms of actinides (U, Np) and fission products (Tc, Se), adsorbed on the surface of nanocrystalline Fe3O4. By combining XAFS, FT-IR, and PIXE measurements, information about the oxidation states and the chemical bonds involved in actinides and fission products species, will be further investigated. The main objectives are:

  • to determine the nature of the association of radionuclides (such as: U, Np, Tc) with magnetite nanocrystalline particles;
  • to elucidate the kinetics of radionuclides immobilisation at nanocrystalline magnetite;
  • to develop the sonochemical synthesis of magnetite nanocrystalline particles with tailored properties.

Expected results

Although this joint research project is mainly devoted to fundamental chemistry of actinides and fission products, its kinetic and spectroscopic data could also lead to the development of a new method for radioactive waste management.

Reports