Phosphorous-Based Pillar[5]arenes for Uranyl Extraction
Phosphorous-Based Pillar[5]arenes for Uranyl Extraction
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用于铀酰萃取的磷基柱[5]芳烃
DOI：
10.1002/cjoc.201400899
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发表时间：
2015
影响因子：
5.4
通讯作者：
Feng Wen
中科院分区：
文献类型：
--
作者：
Bai Bing;Fang Yuyu;Gan Quan;Yang Yuanyou;Yuan Lihua;Feng Wen
合成了一个氧化膦基柱[5]芳烃1a和两个新的磷基柱[5]芳烃1带1c，作为萃取剂用于UO22+的溶剂萃取。用~1H核磁共振、~(31)P核磁共振和FT-IR技术研究了1a-1萃合物的主客体相互作用，结果表明1a和1b(或1c)的络合能力有显著差异。在分离萃取系统和含有12个竞争离子的模拟核工业废水中对UO_(22+)的萃取表明，在酸性进料中，向下的UO_(22+)比其他阳离子具有更高的效率和选择性。LOG-LOG图分析表明，萃合物的化学计量比为1：1(配体/金属)。
One phosphine oxide‐based pillar[5]arene1aand two novel phosphorous‐based pillar[5]arenas1band1cwere synthesized for use as extractants in solvent extraction of UO22+. The results from host‐guest interactions pertinent to the extracted complexes of1a–1crevealed a significant difference in complexation capability between1aand1b(or1c) by using1H NMR,31P NMR and FT‐IR techniques. The extraction of UO22+in separate extraction system and in simulated nuclear industry effluent containing 12 competing ions demonstrated the superior efficiency and selectivity of1atowards UO22+over other cations in acidic feed. Log‐log plot analysis indicated the 1:1 stoichiometry (ligand/metal) for the extracted complex formed between the ligand and UO22+.