Effect of layer charge on fixation of cesium ions in smectites

Y. Onodera, T. Iwasaki, T. Ebina, H. Hayashi, K. Torii, A. Chatterjee, H. Mimura

研究成果: Conference article査読

29 被引用数 (Scopus)


In order to rationalize the influence of layer charge on cesium fixation in smectite, remaining Cs+ or Na+ in cesium- or sodium-saturated smectite specimen (Cs- or Na-specimen), respectively, were examined after Ba2+ exchange using a tracer method. The location of sorbed Cs+ in smectite was also studied by X-ray photoelectron spectroscopy (XPS). A linear multiple regressive model has been used to formulate a relation between the amount of cesium left after Ba-exchange of Cs- specimen and the layer charge characteristics. A good correlation between the amount of remaining Cs and octahedral charge was observed for the Cs-specimen whereas for Na-specimen there was no viable change. From the analysis of the chemical states of sorbed-Cs by XPS, two sorption sites were proposed for the Cs-specimen. Copyright (C) 1998 Elsevier Science B.V.

ジャーナルJournal of Contaminant Hydrology
出版ステータスPublished - 1998 12月 15
イベントProceedings of the 1997 6th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere - Sendai, Jpn
継続期間: 1997 10月 261997 10月 31

ASJC Scopus subject areas

  • 環境化学
  • 水の科学と技術


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