Thermodynamic studies of U(VI) complexation with glutardiamidoxime for sequestration of uranium from seawater

被引：76
|
作者：
Tian, Guoxin [1 ]
Teat, Simon J. [2 ]
Rao, Linfeng [1 ]
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
来源：
DALTON TRANSACTIONS | 2013年 / 42卷 / 16期
关键词：
EQUILIBRIUM-CONSTANTS; EXTRACTION; AMIDOXIMES; RECOVERY; SORBERS;
D O I：
10.1039/c3dt32940b
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Glutardiamidoxime (H2B), a diamidoxime ligand that has implications in sequestering uranium from seawater, forms strong complexes with UO22+. Five U(VI) complexes were identified in 3% NaCl solution. The stability constants and the enthalpies of complexation were measured by potentiometry and microcalorimetry. The competition between glutardiamidoxime and carbonate for complexing U(VI) in 3% NaCl was also studied in comparison with the cyclic glutarimidedioxime ligand (H(2)A) previously studied.
引用
收藏
页码：5690 / 5696
页数：7
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