Poly(amidoxime)-reduced graphene oxide composites as adsorbents for the enrichment of uranium from seawater

被引：98
|
作者：
Shao DaDong [1 ,2 ]
Li JiaXing [1 ]
Wang XiangKe [1 ,2 ,3 ]
机构：
[1] North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China
[2] Soochow Univ, Sch Radiol & Interdisciplinary Sci, Suzhou 215123, Peoples R China
[3] Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Nanjing, Jiangsu, Peoples R China
来源：
SCIENCE CHINA-CHEMISTRY | 2014年 / 57卷 / 11期
基金：
中国国家自然科学基金;
关键词：
uranium; amidoxime; graphene; acrylonitrile; adsorption; MULTIWALLED CARBON NANOTUBES; CHELATING FUNCTIONAL-GROUP; AQUEOUS-SOLUTIONS; URANYL-ION; METAL-IONS; REMOVAL; ADSORPTION; EXTRACTION; RESIN; FILMS;
D O I：
10.1007/s11426-014-5195-7
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The development of efficient materials for high extraction of uranium (UO2 (2+)) from seawater is critical for nuclear energy. Poly(amidoxime)-reduced graphene oxide (PAO/rGO) composites with excellent adsorption capability for UO2 (2+) were synthesized by in situ polymerization of acrylonitrile monomers on GO surfaces, followed by amidoximation treatment with hydroxylamine. The adsorption capacities of PAO/rGO composites for UO2 (2+) reached as high as 872 mg/g at pH 4.0. The excellent tolerance of these composites for high salinity and their regeneration-reuse properties can be applied in the nuclear-fuel industry by high extraction of trace UO2 (2+) ions from seawater.
引用
收藏
页码：1449 / 1458
页数：10
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