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二环己基-18冠-6加速锶离子在微米管支撑的水/1,2-二氯乙烷界面上的转移反应 被引量：1

Strontium ion transfer across micro liquid / liquid interface facilitated by dicyclohexyl-18-crown-6
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摘要 采用玻璃微米管支撑的液/液界面通过循环伏安法(CV)研究了二环己基-18冠6(DCH18C6)加速Sr2+在水/1,2-二氯乙烷(W/DCE)界面上的转移反应,考察了DCH18C6加速Sr2+在W/DCE界面转移的影响因素,如DCH18C6和Sr2+浓度等,并求算其络合物的稳定常数。实验结果表明,Sr2+与DCH18C6发生的是一个1:1的扩散控制的界面络合转移过程,其络合常数β为5.31×1023。本研究可为理解溶剂萃取Sr2+行为提供基础理论数据。 The strontium ion（ Sr2 ＋） transfer across the micro-aqueous/1,2-dichloroethane（ W/DCE） interface facilitated by dicyclohexyl-18-crown-6（ DCH18C6） was investigated by cyclic voltammetry（ CV）. The influences of the concentration of DCH18C6,as well as Sr2 ＋,were examined. The Sr2 ＋transfer facilitated by DCH18C6 is controlled by diffusion. The stoichiometry（ metal to ligand ratios） was calculated to be equal to 1： 1 and the overall complexation constant（ β） was determined as 5. 31 × 1023. This study can provide theoretical data for understanding the Sr2 ＋extraction process.
作者 谢翔 牟婉君 张锐 余钱红 吕开 李兴亮 蹇源 魏洪源
机构地区 中国工程物理研究院核物理与化学研究所
出处 《化学研究与应用》 CAS CSCD 北大核心 2015年第4期424-428,共5页 Chemical Research and Application
基金 核物理与化学研究所创新基金(2012CX04)资助
关键词 微-液/液界面 循环伏安法 锶 二环己基-18-冠-6 liquid / liquid interface cyclic voltammetry strontium dicyclohexyl-18-crown-6
分类号 O614.21 [理学—无机化学]
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参考文献17

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二级参考文献38

共引文献13

同被引文献13

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化学研究与应用
2015年 第4期

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