Web of Science: 10 citas, Scopus: 12 citas, Google Scholar: citas,
MOF-Beads Containing Inorganic Nanoparticles for the Simultaneous Removal of Multiple Heavy Metals from Water
Boix, Gerard (Institut Català de Nanociència i Nanotecnologia)
Troyano, Javier (Institut Català de Nanociència i Nanotecnologia)
Garzon-Tovar, Luis (Institut Català de Nanociència i Nanotecnologia)
Avci-Camur, Ceren (Institut Català de Nanociència i Nanotecnologia)
Bermejo, Natalia (Institut Català de Nanociència i Nanotecnologia)
Yazdi, Amirali (Institut Català de Nanociència i Nanotecnologia)
Piella, Jordi (Institut Català de Nanociència i Nanotecnologia)
Gómez Bastús, Neus (Institut Català de Nanociència i Nanotecnologia)
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Imaz, Inhar (Institut Català de Nanociència i Nanotecnologia)
Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)

Fecha: 2020
Resumen: Pollution of water with heavy metals is a global environmental problem whose impact is especially severe in developing countries. Among water-purification methods, adsorption of heavy metals has proven to be simple, versatile, and cost-effective. However, there is still a need to develop adsorbents with a capacity to remove multiple metal pollutants from the same water sample. Herein, we report the complementary adsorption capacities of metal-organic frameworks (here, UiO-66 and UiO-66-(SH)) and inorganic nanoparticles (iNPs; here, cerium-oxide NPs) into composite materials. These adsorbents, which are spherical microbeads generated in one step by continuous-flow spray-drying, efficiently and simultaneously remove multiple heavy metals from water, including As(III and V), Cd(II), Cr(III and VI), Cu(II), Pb(II), and Hg(II). We further show that these microbeads can be used as a packing material in a prototype of a continuous-flow water treatment system, in which they retain their metal-removal capacities upon regeneration with a gentle acidic treatment. As proof-of-concept, we evaluated these adsorbents for purification of laboratory water samples prepared to independently recapitulate each of two strongly polluted rivers: the Bone (Indonesia) and Buringanga (Bangladesh) rivers. In both cases, our microbeads reduced the levels of all the metal contaminants to below the corresponding permissible limits established by the World Health Organization (WHO). Moreover, we demonstrated the capacity of these microbeads to lower levels of Cr(VI) in a water sample collected from the Sarno River (Italy). Finally, to create adsorbents that could be magnetically recovered following their use in water purification, we extended our spray-drying technique to simultaneously incorporate two types of iNPs (CeO and FeO) into UiO-66-(SH), obtaining CeO/FeO@UiO-66-(SH) microbeads that adsorb heavy metals and are magnetically responsive.
Nota: Número d'acord de subvenció AGAUR/2017/SGR-238
Nota: Número d'acord de subvenció EC/FP7/615954
Nota: Número d'acord de subvenció MINECO/RTI2018-095622-B-I00
Nota: Número d'acord de subvenció MINECO/SEV-2017-0706
Derechos: Tots els drets reservats
Lengua: Anglès
Documento: article ; recerca ; acceptedVersion
Materia: Metal−organic frameworks ; Composite ; Inorganic nanoparticles ; Metal removal ; Water treatment
Publicado en: ACS applied materials & interfaces, Vol. 12, Issue 9 (March 2020) , p. 10554-10562, ISSN 1944-8252

DOI: 10.1021/acsami.9b23206


Disponible a partir de: 2021-03-31
Postprint

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Nanociència i Nanotecnologia (ICN2)
Artículos > Artículos de investigación
Artículos > Artículos publicados

 Registro creado el 2020-07-27, última modificación el 2021-02-18



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