Artículo
Montmorillonite materials with paramagnetic metal complexes: Structural studies and catalytic degradation of emerging pollutants
Crespi, Ayelen Florencia
; Zomero, Paula Natalia; Pérez, Ana Laura
; Brondino, Carlos Dante
; Infantes Molina, Antonia; Garro Linck, Yamila
; Monti, Gustavo Alberto
; Fernandez, Mariela Alejandra
; Rodríguez Castellón, Enrique; Lazaro Martinez, Juan Manuel
Fecha de publicación:
11/2023
Editorial:
Elsevier
Revista:
Journal of Environmental Chemical Engineering
ISSN:
2213-2929
e-ISSN:
2213-3437
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The aim of this work was to characterize and propose the use of new heterogeneous catalysts based on montmorillonite (Mt) materials bearing organic copper metal complexes to remove a variety of emerging pollutants such as antibiotics, azo dyes and antimycotics. The incorporation of Cu2+ ions and their coordination by 4-methyl-5-imidazolecarboxaldehyde (Im) or 4-acetylpyridine (Py) ligands in the interlayer space of the clay were studied by NMR, XRD, EPR and XPS, which provided information about the surface chemical composition of the copper centers and the ligands present in the materials. The ligands were incorporated into different zones of the Mt-Cu structure, being the Im and Py ligands (L) preferentially located outside and inside the interlayer space, respectively, showing different incorporation degrees. The catalytic activity of the composites (Mt-Cu-L) was demonstrated by their capacity to generate ROS and to degrade pollutants, producing an environmentally non-toxic waste, as assessed by the brine shrimp toxicity assay.
Palabras clave:
COPPER COMPLEXES
,
COPPER ORGANOCLAYS
,
EMERGING POLLUTANTS
,
HYDROXYL RADICALS
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos(CETMIC)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos(IQUIMEFA)
Articulos de INST.QUIMICA Y METABOLISMO DEL FARMACO (I)
Articulos de INST.QUIMICA Y METABOLISMO DEL FARMACO (I)
Citación
Crespi, Ayelen Florencia; Zomero, Paula Natalia; Pérez, Ana Laura; Brondino, Carlos Dante; Infantes Molina, Antonia; et al.; Montmorillonite materials with paramagnetic metal complexes: Structural studies and catalytic degradation of emerging pollutants; Elsevier; Journal of Environmental Chemical Engineering; 11; 6; 11-2023; 1-12
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