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Superselective clay for radium uptake

Raに対する高い選択的保持性能を有する粘土材料

Komarneni, S.*; 香西 直文   ; Paulus, W. J.*

Komarneni, S.*; Kozai, Naofumi; Paulus, W. J.*

ウラン尾鉱などに含まれるRaによる土壌や地下水の汚染が各地で問題化されている。本研究では、膨潤性雲母型粘土材料がRaを選択的に保持するとともにRaを粘土材料中に固定化することを示す結果が得られた。

A radioactive legacy of the nuclear industry threatens many areas of the world with radioactive radium contamination from the solid and liquid waste left after extracting U from ores. Here we report that a synthetic clay of high charge is not only extremely selective for the uptake of Ra but also useful for Ra immobilization at room temperature. These results are of relevance for decontaminating the environmental and drinking water of Ra.

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