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- Title
MIL-101(Cr) metal–organic framework functionalized with tetraethylenepentamine for potential removal of Uranium (VI) from waste water.
- Authors
Liu, Fengtai; Song, Shanshan; Cheng, Ge; Xiong, Wenjing; Shi, Lei; Zhang, Yibo
- Abstract
The metal–organic frameworks material functionalized by grafting amino group of tetraethylenepentamine on the coordinative unsaturated Cr (III) centers is described. The obtained tetraethylenepentamine-functionalized adsorbents with different mass ratios of tetraethylenepentamine have been characterized by scanning electron microscopy, Fourier-transform infrared, X-ray powder diffraction, and N2 adsorption and desorption isotherms. Significantly, MIL-101-tetraethylenepentamine 60% exhibited high adsorption capacity (350 mg/g) for removal of uranium (VI) from water at pH 4.5. At uranium concentration <20 mg/L, the isothermal plot was best represented by Freundlich model. At U(VI) concentration approximately >30 mg/L, the isotherm was best described by Langmuir model.
- Subjects
URANIUM; ADSORPTION (Chemistry); INFRARED spectroscopy; FREUNDLICH isotherm equation; LANGMUIR isotherms
- Publication
Adsorption Science & Technology, 2018, Vol 36, Issue 7/8, p1550
- ISSN
0263-6174
- Publication type
Article
- DOI
10.1177/0263617418789516