5-Bromo-2,9-bis(5,6-diphenyl-1,2,4-triazin-3-yl)-1,10-phenanthrolin as an Efficient Ligand for Selective Removal of Strontium and Cobalt from Aqueous Solution
5-Bromo-2,9-bis(5,6-diphenyl-1,2,4-triazin-3-yl)-1,10-phenanthrolin as an Efficient Ligand for Selective Removal of Strontium and Cobalt from Aqueous Solution
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5-溴-2,9-双(5,6-二苯基-1,2,4-三嗪-3-基)-1,10-菲咯啉作为选择性去除水溶液中锶和钴的有效配体
DOI：
10.1002/bkcs.11706
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发表时间：
2019
影响因子：
1.7
通讯作者：
Jang J
中科院分区：
文献类型：
--
作者：
Jang J
本研究合成了5‐bromo‐2，9‐bis(5，6‐diphenyl‐1，2，4‐triazin‐3‐yl)‐1，10‐phenanthroline(5-溴-Ph_4-BTPhen)，并对其去除主要放射性核素(Cs+、Sr2+和Co2+)的能力进行了评价。在中性和碱性条件下，合成的配体对1 mg/L水溶液中的Sr2+和Co2+的萃取率均达到99%以上。由于竞争金属离子与配位体空腔中N-施主原子的键合强度较高，对Sr2+和Co2+的去除效率降低；竞争二价离子比一价离子对Sr2+和Co2+去除效率的影响更大。
In this study, 5‐bromo‐2,9‐bis(5,6‐diphenyl‐1,2,4‐triazin‐3‐yl)‐1,10‐phenanthroline (5‐bromo‐Ph4‐BTPhen) was synthesized and evaluated for its ability to remove major radionuclides (Cs+, Sr2+, and Co2+). The synthesized ligand removed both Sr2+and Co2+from 1 mg/L aqueous solutions with extraction efficiencies of up to 99% at neutral and alkaline pH. The Sr2+and Co2+removal efficiencies decreased as a consequence of the higher bonding strengths of competing metal ions to the N‐donor atoms in the cavity of the ligand; competing divalent ions affected the Sr2+and Co2+removal efficiencies more than monovalent ions.