Multivariate Metal-Organic Frameworks for the Simultaneous Capture of Organic and Inorganic Contaminants from Water.
Marta MonRosaria BrunoEstefania TiburcioMarta Viciano-ChumillasLucas H G KalinkeJesús Ferrando-SoriaDonatella ArmentanoEmilio PardoPublished in: Journal of the American Chemical Society (2019)
We report a new water-stable multivariate (MTV) metal-organic framework (MOF) prepared by combining two different oxamide-based metalloligands derived from the natural amino acids l-serine and l-methionine. This unique material features hexagonal channels decorated with two types of flexible and functional "arms" (-CH2OH and -CH2CH2SCH3) capable of enabling, synergistically, the simultaneous and efficient removal of both inorganic (heavy metals such as Hg2+, Pb2+, and Tl+) and organic (dyes such as Pyronin Y, Auramine O, Brilliant green, and Methylene blue) contaminants, and, in addition, this MTV-MOF is completely reusable. Single-crystal X-ray diffraction measurements allowed solving the crystal structure of a host-guest adsorbate, containing both HgCl2 and Methylene blue, and offered unprecedented snapshots of this unique dual capture process. This is the very first time that a MOF can be used for the removal of all sorts of pollutants from water resources, thus opening new perspectives for this emerging type of MTV-MOF.
Keyphrases
- metal organic framework
- heavy metals
- water soluble
- room temperature
- amino acid
- risk assessment
- drinking water
- health risk assessment
- high resolution
- aqueous solution
- health risk
- data analysis
- computed tomography
- magnetic resonance imaging
- quantum dots
- magnetic resonance
- sewage sludge
- protein kinase
- mass spectrometry
- ionic liquid
- anaerobic digestion