Refine your search:     
Report No.
Search Results: Records 1-2 displayed on this page of 2
  • 1

Presentation/Publication Type

Initialising ...


Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...


Initialising ...


Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

6th International Conference on Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere (Migration '97)

Oe, Toshiaki*; Yamaguchi, Tetsuji

Nippon Genshiryoku Gakkai-Shi, 40(1), p.47 - 49, 1998/01

no abstracts in English

Oral presentation

Sorption of Eu$$^{3+}$$ on montmorillonite studied by time-resolved laser fluorescence spectroscopy and surface complexation modeling

Sasaki, Takayuki*; Ueda, Kenyo*; Saito, Takumi*; Aoyagi, Noboru; Kobayashi, Taishi*; Takagi, Ikuji*; Kimura, Takaumi; Tachi, Yukio

no journal, , 

The influence of pH, ionic strength, and the concentrations of Eu$$^{3+}$$ and nitrate salts on the sorption of Eu$$^{3+}$$ on Na-montmorillonite was investigated by batch sorption measurements. The distribution coefficient (Kd) indicated that the cation exchange reaction is significant in pH 4-7 at low ionic strength, and the formation of surface complexation is related to the pH dependence of Kd at high ionic strength. The Eu$$^{3+}$$ surface species were investigated using time-resolved laser fluorescence spectroscopy (TRLFS) with parallel factor analysis (PARAFAC). The PARAFAC modeling indicated two surface species, the outer-sphere (factor A) and inner-sphere (factor B) Eu$$^{3+}$$ complexes. Factor B was dominant at high pH and ionic strength, which was determined to be a Eu colloidal species formed at high Eu$$^{3+}$$ concentrations. A cation exchange model combined with a one-site non-electrostatic surface complexation model was applied to the measured Kd data, using the results of the TRLFS-PARAFAC analyses.

2 (Records 1-2 displayed on this page)
  • 1