pH-triggered removal of nitrogenous organic micropollutants from water by using metal-organic polyhedra
Hernández López, Laura (Institut Català de Nanociència i Nanotecnologia)
Cortés-Martínez, Alba (Universitat Autònoma de Barcelona. Departament de Química)
Parella Coll, Teodor (Universitat Autònoma de Barcelona. Servei de Ressonància Magnètica Nuclear)
Carné-Sánchez, Arnau (Institut Català de Nanociència i Nanotecnologia)
Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)

Date:	2022
Abstract:	Water pollution threatens human and environmental health worldwide. Thus, there is a pressing need for new approaches to water purification. Herein, we report a novel supramolecular strategy based on the use of a metal-organic polyhedron (MOP) as a capture agent to remove nitrogenous organic micropollutants from water, even at very low concentrations (ppm), based exclusively on coordination chemistry at the external surface of the MOP. Specifically, we exploit the exohedral coordination positions of Rh-MOP to coordinatively sequester pollutants bearing N-donor atoms in aqueous solution, and then harness their exposed surface carboxyl groups to control their aqueous solubility through acid/base reactions. We validated this approach for removal of benzotriazole, benzothiazole, isoquinoline, and 1-napthylamine from water.
Grants:	Agencia Estatal de Investigación RTI2018-095622-B-I00 Ministerio de Economía y Competitividad SEV-2017-0706 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-238
Note:	Altres ajuts: this work funded by the CERCA Programme/Generalitat de Catalunya and through a fellowship (LCF/BQ/PR20/11770011) from the "la Caixa" Foundation (ID 100010434). L.H.L. acknowledges the support from the Spanish State Research Agency (PRE2019-088056).
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Coordinative removal ; Metal-organic polyhedra ; H-responsive ; Organic micropollutants ; Pollutant removal
Published in:	Chemistry (Weinheim), Vol. 28, issue 31 (June 2022) , art. e202200357, ISSN 1521-3765

DOI: 10.1002/chem.202200357
PMID: 35348255

9 p, 1.8 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles