Effect of temperature on K+ and Mg2+ extracted desorption of Cs from vermiculitized biotite

Xiangbiao Yin, Lijuan Zhang, Asumi Ochiai, Satoshi Utsunomiya, Hideharu Takahashi, Toshihiko Ohnuki, Kenji Takeshita

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Abstract

Sorbed Cs on vermiculitized biotite in saturation amount was desorbed by extractions with 1 M K+ and Mg2+ at varied temperatures. At room temperature, Cs+ was readily desorbed by leaching with K+ (ca. 100%) but not by Mg2+ (ca. 50%). However, the contrary was true for desorption at high temperatures, in which Mg2+ desorbed far more Cs+ (ca. 100%) than K+ (ca. 25%). XRD analysis of Cs-depleted samples suggested that the contrary abilities of K+ and Mg2+ for Cs desorption at low and high temperatures were attributed to their induced interlayer collapse or expansion during extraction.

Original languageEnglish
Pages (from-to)1350-1352
Number of pages3
JournalChemistry Letters
Volume46
Issue number9
DOIs
Publication statusPublished - Jan 1 2017

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Yin, X., Zhang, L., Ochiai, A., Utsunomiya, S., Takahashi, H., Ohnuki, T., & Takeshita, K. (2017). Effect of temperature on K+ and Mg2+ extracted desorption of Cs from vermiculitized biotite. Chemistry Letters, 46(9), 1350-1352. https://doi.org/10.1246/cl.170551