用新型麦芽酚基功能化离子液体从水溶液中萃取天然放射性核素。

Platzer Sonja, Sap Orhan, Leyma Raphlin, Wallner Gabriele, Jirsa Franz, Kandioller Wolfgang, Krachler Regina, Keppler Bernhard K

Faculty of Chemistry, Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, 1090 Vienna, Austria.

J Radioanal Nucl Chem. 2015;303(3):2483-2488. doi: 10.1007/s10967-014-3782-x. Epub 2014 Nov 27.

Two novel maltol-based ionic liquids, namely [A336][Mal] and [C101][Mal], were synthesized as potential extracting agents for radionuclides from water. These two room temperature task-specific ionic liquids could be easily prepared by anion metathesis starting from commercially available materials. The isolated compounds were characterized by standard analytical methods. Their application as extraction agent for U, Th, Pb, Bi, Po and Ra was elucidated by liquid-liquid extraction and scintillation counting. Uranium was totally extracted by both ionic liquids over a broad pH range (2-8), while the other radionuclides were removed with differing efficacies depending on the respective pH value.

合成了两种新型的基于麦芽酚的离子液体，即[A336][Mal]和[C101][Mal]，作为从水中提取放射性核素的潜在萃取剂。这两种室温任务特定离子液体可通过阴离子复分解反应，从市售材料轻松制备。分离出的化合物通过标准分析方法进行表征。通过液液萃取和闪烁计数阐明了它们作为U、Th、Pb、Bi、Po和Ra萃取剂的应用。在较宽的pH范围（2 - 8）内，两种离子液体都能完全萃取铀，而其他放射性核素则根据各自的pH值以不同的效率被去除。