U(VI) capture from aqueous solution by highly porous and stable MOFs: UiO-66 and its amine derivative

被引：188

作者：

Luo, Bai-Cheng ^{[1
,2
]}

Yuan, Li-Yong ^{[2
]}

Chai, Zhi-Fang ^{[2
,3
]}

Shi, Wei-Qun ^{[2
]}

Tang, Quan ^{[1
]}

机构：

[1] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China

[3] Soochow Univ, Sch Radiol & Interdisciplinary Sci, Suzhou 215123, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2016年 / 307卷 / 01期

关键词：

Metal-organic frameworks; UiO-66; Amine derivative; Uranium; Sorption; METAL-ORGANIC FRAMEWORKS; MESOPOROUS SILICA; URANIUM(VI); SORPTION; REMOVAL; ION; PRECONCENTRATION; PHOSPHONATE; SORBENT; NUCLEAR;

D O I：

10.1007/s10967-015-4108-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Metal-organic frameworks (MOFs) UiO-66 and its amine derivative (UiO-66-NH2) with high surface area and unprecedented chemical stability were synthesized and first explored for U(VI) capture from aqueous solutions. At pH 5.5, U(VI) sorption reach equilibrium in ca. 4 h and the maximum sorption capacity is more than 100 mg g(-1). Moreover, they show desirable selectivity towards U(VI) over a range of competing metal ions. Sorption results demonstrate that introduction of amino groups into MOFs does not enhance U(VI) sorption, probably result from the lower activity of aromatic amines, decrease of surface area and formation of intermolecular hydrogen bonds.

引用

页码：269 / 276

页数：8

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