6533b7d6fe1ef96bd1265e37

RESEARCH PRODUCT

Multivariate Metal-Organic Frameworks for the Simultaneous Capture of Organic and Inorganic Contaminants from Water

Emilio PardoRosaria BrunoLucas H. G. KalinkeEstefanía TiburcioDonatella ArmentanoMarta Viciano-chumillasMarta MonJesús Ferrando-soria

subject

Aigua ContaminacióAuramine OChemistryOxamideInorganic chemistryfungiQuímica organometàl·licaHeavy metalsGeneral ChemistryCrystal structure010402 general chemistry01 natural sciencesBiochemistryCatalysis0104 chemical scienceschemistry.chemical_compoundColloid and Surface ChemistryBrilliant greenInorganic contaminantsMetal-organic frameworkMethylene blue

description

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 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 addition, 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 snapshots 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.

10.1021/jacs.9b06250https://doi.org/10.1021/jacs.9b06250