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Issue 16, 2017
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Two lanthanide-based metal–organic frameworks for highly efficient adsorption and removal of fluoride ions from water

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Abstract

The contamination of water with fluoride (F) is a source of mounting concern for global public health, and the removal of fluoride is quite important and challenging. In this study, two new lanthanide-based metal–organic frameworks (MOFs), {[Ce(L1)0.5(NO3)(H2O)2]·2DMF} (1) and [Eu3(L2)2(OH)(DMF)0.22(H2O)5.78]·guest (2) (H4L1 = 2,5-di(3′,5′-dicarboxylphenyl)benzene and H4L2 = 3,5-bis(isophthalic acid)-1H-1,2,4-triazole) are designed, synthesized and characterized. Both MOFs are tested for their adsorption capacity for fluoride ions and different uptake times from contaminated water. The investigation indicates that 1 displays a much higher adsorption capacity (103.95 mg g−1) and faster uptake rates (1.79 g mg−1 min−1) for fluoride ion than that of 2. The presented investigation is the first report in which lanthanide-based MOFs are used for the removal of fluoride ions from water.

Graphical abstract: Two lanthanide-based metal–organic frameworks for highly efficient adsorption and removal of fluoride ions from water

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Publication details

The article was received on 11 Feb 2017, accepted on 21 Mar 2017 and first published on 21 Mar 2017


Article type: Paper
DOI: 10.1039/C7CE00291B
Citation: CrystEngComm, 2017,19, 2172-2177
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    Two lanthanide-based metal–organic frameworks for highly efficient adsorption and removal of fluoride ions from water

    A. Ma, F. Ke, J. Jiang, Q. Yuan, Z. Luo, J. Liu and A. Kumar, CrystEngComm, 2017, 19, 2172
    DOI: 10.1039/C7CE00291B

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