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マイナーアクチニドとランタニドの分離用吸着材中におけるランタニドの局所構造解析

Local structural analysis of lanthanides in the adsorbents for separation of minor actinides and lanthanides

土屋 巽*; 岡田 諒*; 渡部 創  ; 佐野 雄一   ; 新井 剛*; 松浦 治明*

Tsuchiya, Tatsumi*; Okada, Makoto*; Watanabe, So; Sano, Yuichi; Arai, Tsuyoshi*; Matsuura, Haruaki*

各種NTAアミド抽出剤を含浸させた吸着材に、ランタニド(Ln(III))を吸着させた試料等を対象として、EXAFS測定による構造解析を行った。側鎖の異なるNTAアミド吸着材の吸着挙動から側鎖の違いによりある元素周りの酸素との距離が変化することが分かった。

Structural analysis was performed by EXAFS measurement on samples in which lanthanide (Ln (III)) was adsorbed on an adsorbent impregnated with various NTA amide extracts. The adsorption behavior of NTA amide adsorbents with different side chains suggested that the distance to oxygen around an element changes due to the difference in side chains.

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