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

Journal of the American Chemical Society
Marta MonEmilio Pardo

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) 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.

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Citations

Aug 12, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Richa RajakShaikh M Mobin
Dec 29, 2020·Journal of Colloid and Interface Science·Yafei SangYou-Nian Liu
Feb 20, 2021·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Changyin YangMaochun Hong
Sep 2, 2020·Journal of Colloid and Interface Science·Muhammad Alasad AlbakriOthman Charles S Al Hamouz
Apr 29, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Teresa F MastropietroDonatella Armentano
Jun 15, 2021·ACS Applied Materials & Interfaces·Cristina NegroEmilio Pardo
Dec 4, 2020·ACS Applied Materials & Interfaces·Tiancheng SunYulin Yang
Feb 7, 2020·ACS Applied Materials & Interfaces·Gerard BoixDaniel Maspoch

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