Sorption of Eu(III) on attapulgite studied by batch, XPS, and EXAFS techniques.
- Q. Fan, X. Tan, J. X. Li, X. Wang, W. S. Wu, G. Montavon
- ChemistryEnvironmental Science and Technology
- 23 June 2009
The effects of pH, ionic strength, and temperature on sorption of Eu(III) on attapulgite were investigated in the presence and absence of fulvic acid (FA) and humic acid (HA). The results indicated…
Spectroscopic study of the interaction of U(VI) with transferrin and albumin for speciation of U(VI) under blood serum conditions.
Study of the interaction between europium (III) and Bacillus subtilis: fixation sites, biosorption modeling and reversibility.
Selenide retention onto pyrite under reducing conditions
Summary Pyrite (FeS2) is a mineral phase often present as inclusions in temperate soils. Moreover, it turns out to be a sorption sink for certain radionuclides in deep geological disposals. The…
Surface complexation modeling of Eu(III) adsorption on silica in the presence of fulvic acid
- Y. Ye, Zongyuan Chen, G. Montavon, Q. Jin, Zhijun Guo, Wang-suo Wu
- ChemistryScience China Chemistry
Humic substances (HS) substantially affect heavy metal (M) adsorption on mineral surfaces. However, quantitative descriptions of ternary systems involving M, HS and mineral surfaces remain unclear.…
XAS study of technetium(IV) polymer formation in mixed sulphate/chloride media
Summary X-ray absorption spectroscopy has been used to establish polymer formation of Tc(IV) in aqueous solutions of Na+SO42− and Na+Cl−/SO42−. As the molybdenum chemistry show similarities to that…
Investigation of astatine(III) hydrolyzed species: experiments and relativistic calculations.
The hydrolysis thermodynamic constant, extrapolated to zero ionic strength, was determined to be 10(-1.9) and supported by two-component relativistic quantum calculations and therefore allows disclosing unambiguously the structure of the formed species.
Sorption of Cs, Ni, Pb, Eu(III), Am(III), Cm, Ac(III), Tc(IV), Th, Zr, and U(IV) on MX 80 bentonite: An experimental approach to assess model uncertainty
- B. Grambow, M. Fattahi, G. Montavon, C. Moisan, E. Giffaut
- Environmental Science, Chemistry
- 1 November 2006
A multi-site surface complexation/ion exchange model for dispersed MX 80 bentonite has been calibrated, considering the dissolution properties of the constituting mineral assemblage, for sorption of…
Interaction of selenite with MX-80 bentonite: Effect of minor phases, pH, selenite loading, solution composition and compaction
Review of chemical and radiotoxicological properties of polonium for internal contamination purposes.
The aim of this review is to look at the several aspects of polonium linked to its chemical properties and its radiotoxicity, including (i) its radiochemistry and interaction with matter; (ii) its main sources and uses; (iii) its physicochemical properties; (iv) itsmain analytical methods; (v) its background exposure risk in water, food, and other environmental media.