Two lanthanide-based metal–organic frameworks for highly efficient adsorption and removal of fluoride ions from water. Issue 16 (4th April 2017)

• Record Type: Journal Article
• Authors: Ma, Aiqing; Ke, Fei; Jiang, Jing; Yuan, Qiaoyu; Luo, Zhidong; Liu, Jianqiang; Kumar, Abhinav
• Is Part Of: CrystEngComm. Volume 19:Issue 16(2017)
• Page Start: 2172
• Page End: 2177
• Publication Date: 2017-04-04
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c7ce00291b
• Languages: English
• ISSNs: 1466-8033

Abstract

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. 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 )(H2 O)2 ]·2DMF} (1 ) and [Eu3 (L2)2 (OH)(DMF)0.22 (H2 O)5.78 ]·guest (2 ) (H4 L1 = 2, 5-di(3′, 5′-dicarboxylphenyl)benzene and H4 L2 = 3, 5-bis(isophthalic acid)-1 H -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 that1 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 of2 . The presented investigation is the first report in which lanthanide-based MOFs are used for the removal of fluoride ions from water.