Removal of uranium from aqueous solution by phosphate functionalized superparamagnetic polymer microspheres Fe3O4/P(GMA-AA-MMA)

被引：24

作者：

Yuan, Dingzhong ^{[1
,2
]}

Xiong, Xin ^{[2
]}

Chen, Long ^{[2
]}

Lv, Yuan ^{[2
]}

Wang, Yun ^{[2
]}

Yuan, Ligang ^{[2
]}

Liao, Shijun ^{[2
]}

Zhang, Qinghua ^{[2
]}

机构：

[1] East China Inst Technol, State Key Lab Breeding Base Nucl Resources & Envi, Nanchang 330013, Peoples R China

[2] East China Inst Technol, Dept Mat Sci & Engn, Nanchang 330013, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2016年 / 309卷 / 02期

关键词：

Superparamagnetic polymer microspheres; Phosphate group; Uranium(VI); Sorption; SOLID-PHASE EXTRACTION; EFFICIENT REMOVAL; CARBON SPHERES; ION-EXCHANGE; ADSORPTION; U(VI); ACID; VI; TERPOLYMERS; PARTICLES;

D O I：

10.1007/s10967-015-4682-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new phosphate functionalized superparamagnetic polymer sorbent Fe3O4/P(GMA-AA-MMA)-PO4 was developed by functionalizing Fe3O4/P(GMA-AA-MMA) prepared by soap free emulsion polymerization with o-phosphoethanolamine. The adsorption process was spontaneous and endothermic in nature and kinetically followed pseudo second-order model. The maximum monolayer adsorption capacity obtained from the Langmuir model was 274.7 mg g(-1) at 298 K. Fe3O4/P(GMA-AA-MMA)-PO4 could selectively adsorb U(VI) in aqueous solution containing co-existing ions and the selectivity of Fe3O4/P(GMA-AA-MMA)-PO4 could reach up to 77 % at pH 4.5. Furthermore, the novel magnetic sorbent could also be easily separated and recovered from aqueous solutions by an external magnetic field.

引用

页码：729 / 741

页数：13

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