Interactions of the Rare Earth Elements-Desferrioxamine B Complexes with Pseudomonas fluorescens and γ-Al_2O_3

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We have studied the interactions of REEs (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, and Er)–desferrioxamine B (DFO) complexes with <i>Pseudomonas fluorescens</i> cells and with γ-Al<sub>2</sub>O<sub>3</sub>, at pH 4–9. Higher adsorption of REEs was obtained at lower pHs on <i>P. fluorescens</i> cells and at higher pHs on γ-Al<sub>2</sub>O<sub>3</sub>. The degree of negative anomaly of Ce compared to its neighboring REEs, La(III) and Pr(III) increased with increasing pH. XAFS analysis showed that Ce exists as the Ce(IV)–DFO complex in pH higher than 6. Thus, the pH dependence of Ce anomaly is predominantly dependent on the stability of Ce(IV)–DFO complex.

収録刊行物

  • Chemistry letters

    Chemistry letters 41(1), 98-100, 2012-01-05

    公益社団法人 日本化学会

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各種コード

  • NII論文ID(NAID)
    10030222736
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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