Uranium sorption from saline lake brine by amidoximated silica

被引：31

作者：

Yin, Xiaojie ^{[1
,2
,3
]}

Bai, Jing ^{[1
]}

Tian, Wei ^{[1
,3
]}

Li, Sa ^{[1
,2
,3
]}

Wang, Jieru ^{[1
]}

Wu, Xiaolei ^{[1
]}

Wang, Yang ^{[1
]}

Fan, Fangli ^{[1
]}

Huang, Qinggang ^{[1
]}

Qin, Zhi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 313卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Uranium; Saline lake brine; Amidoximated silica; Sorption; RAY PHOTOELECTRON-SPECTROSCOPY; MCM-48; MOLECULAR-SIEVES; AQUEOUS-SOLUTION; MODIFIED HECTORITE; MESOPOROUS MCM-41; ADSORPTION; REMOVAL; IONS; SEAWATER; POLYMER;

D O I：

10.1007/s10967-017-5283-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A series of silica sorbents with different content of amidoxime groups were prepared through co-condensation method and applied to extract uranium from saline lake brine. The optimum amidoxime group content was determined and effects of pH on uranium sorption were investigated. Sorption kinetic and isotherms were also investigated. XPS analysis indicated that the adsorption mechanism of uranium was attributed to the interaction between uranyl ion and N in the amidoxime. Amidoximated silica could efficiently absorb the naturally occurring uranium in the saline lake brine samples from Qinghai, China.

引用

页码：113 / 121

页数：9

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