Sorption of strontium by the endoreceptor dibenzo-18-crown-6 immobilized in a polymer matrix
Sorption of strontium by the endoreceptor dibenzo-18-crown-6 immobilized in a polymer matrix
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DOI：
10.1007/s10967-014-3770-1
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发表时间：
2014-11
影响因子：
1.6
通讯作者：
N. Bezhin;I. Dovhyi;A. Yu. Lyapunov
中科院分区：
文献类型：
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作者：
N. Bezhin;I. Dovhyi;A. Yu. Lyapunov
通过将不同量的内受体二苯并-18-冠-6浸渍在苯乙烯-二乙烯基苯聚合物基质“Porolas-T”中，得到一组新的吸附剂。本文研究了锶在天然混合同位素硝酸溶液中的吸附物理和化学参数，即吸附等温线、分配系数对溶液中硝酸浓度和吸附剂中冠醚浓度的依赖性、锶的吸附和解吸动力学。研究了锶对碱金属、碱土金属和钴的吸附选择性。考察了吸附剂对放射性~（90）Sr的吸附性能。
A set of new sorbent were obtained by impregnation different amounts of endoreceptor dibenzo-18-crown-6 in the styrene–divinylbenzene polymer matrix “Porolas-T”. Physical and chemical parameters of strontium sorption on a natural mixture of isotopes from nitric acid solutions were investigated, namely isotherm of sorption, dependence of the distribution coefficient on the concentration of nitric acid in a solution and concentration of crown ether in the sorbent, kinetics of sorption and desorption of strontium. The selectivity of strontium sorption was studied to the alkaline, alkaline-earth metals and cobalt. The sorption properties of sorbent were examined to extraction of radioactive90Sr.