INVESTIGADORES
MORENO Mario Sergio Jesus
artículos
Título:
Comparison of the (photo)catalytic efficiency of Ag/Fe nanocomposites prepared by polyol synthesis and laser ablation
Autor/es:
DONADELLI, JORGE A.; RIVAS AIELLO, MARÍA B.; APARICIO, FRANCISCA; MORENO, M. SERGIO; MORALES, M. GISELA; PAJARES, ADRIANA; ARCE, VALERIA B.; MÁRTIRE, DANIEL O.
Revista:
JOURNAL OF NANOPARTICLE RESEARCH
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2022 vol. 24
ISSN:
1388-0764
Resumen:
Two different synthesis approaches were used to prepare silver/iron oxides nanocomposites: the polyol synthesis and laser ablation. The nanocomposites consisted of 10?20 nm Ag nanoparticles immersed in 100??300 nm iron oxide structures, being the Ag:Fe greater for the nanomaterial prepared by the chemical procedure. Both nanomaterials were able to catalyze the NaBH4-mediatedreduction of the model contaminant 3-nitrophenol (3-NP).Photoirradiation had no effect on the performance of the nanocomposite prepared by laser ablation, whereas it produced a drastic improvement of the catalytic effect of the nanomaterial prepared by polyol synthesis, a result related to the silver content of the nanomaterials. A heterogeneous photocatalytic mechanism is proposed.
