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- Title
U(VI) capture from aqueous solution by highly porous and stable MOFs: UiO-66 and its amine derivative.
- Authors
Luo, Bai-Cheng; Yuan, Li-Yong; Chai, Zhi-Fang; Shi, Wei-Qun; Tang, Quan
- Abstract
Metal-organic frameworks (MOFs) UiO-66 and its amine derivative (UiO-66-NH) 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. 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.
- Subjects
AQUEOUS solutions; RADIOACTIVE substances; ANALYTICAL radiochemistry; ANALYTICAL chemistry; RADIOCHEMISTRY; NUCLEAR chemistry
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2016, Vol 307, Issue 1, p269
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-015-4108-3