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Multivariate metal−organic frameworks for the simultaneous capture of organic and inorganic contaminants from water

DOI: 10.1021/jacs.9b06250 DOI Help

Authors: Marta Mon (Universidad de Valencia) , Rosaria Bruno (Università della Calabria) , Estefanía Tiburcio (Universidad de Valencia) , Marta Viciano-chumillas (Universidad de Valencia) , Lucas H. G. Kalinke (Universidad de Valencia) , Jesus Ferrando-soria (Universidad de Valencia) , Donatella Armentano (Università della Calabria) , Emilio Pardo (Universidad de Valencia)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of The American Chemical Society

State: Published (Approved)
Published: August 2019
Diamond Proposal Number(s): 22411

Abstract: 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) capa-ble to act, synergistically, for the simultaneous and efficient removal of both inorganic (heavy metals like Hg2+, Pb2+ and Tl+) and organic (dyes such as Pyronin Y, Auramine O, Brilliant Green and Methylene Blue) contaminants and, in addi-tion, this MTV-MOF is completely reusable. Single-crystal X-ray diffraction (SCXRD) measurements allowed to solve the crystal structure of a host-guest adsorbate, containing both HgCl2 and Methylene Blue, and offered unprecedented snap-shots about 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-MOFs.

Subject Areas: Chemistry, Environment, Materials


Instruments: I19-Small Molecule Single Crystal Diffraction