In situ synthesis of CuO/Cu2O nanoparticle-coating nanoporous alumina membranes with photocatalytic activity under visible light radiation

dc.creatorDurán, Boris
dc.creatorSaldías, César
dc.creatorVillarroel, Roberto
dc.creatorHevia, Samuel A.
dc.date2023-03-08T13:06:27Z
dc.date2023-03-08T13:06:27Z
dc.date2023
dc.date.accessioned2024-05-02T20:30:38Z
dc.date.available2024-05-02T20:30:38Z
dc.identifierhttp://repositorio.ucm.cl/handle/ucm/4487
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9274731
dc.descriptionWe report the synthesis and characterization of CuO/Cu2O film supported on nanoporous alumina membranes (NAMs) and the photocatalytic properties in the removal of the organic pollutant methyl orange (MO). For this purpose, transparent nanostructured membranes were fabricated and sequentially modified with APTS ((3-aminopropyl)-trimethoxysilane) and EDTAD (ethylenediaminetetraacetic dianhydride) to form a highly functionalized surface with high density of carboxyl groups, which easily complex with copper cations. The Cu2+-modified membranes were annealed in a chemical vapor deposition (CVD) furnace to form a well-ordered nanostructured coating of CuO/Cu2O with photocatalytic properties. These modifications were followed by characterization with FT-IR and UV–visible spectra, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), and energy dispersive X-ray spectroscopy (EDS). Finally, the photocatalytic performance of the NAM-CuO/Cu2O nanostructured membranes was tested in the aqueous removal of MO dye as a model reaction system. Our results revealed 50% photocatalytic removal of MO under continuous light irradiation for 2 h. The procedure presented in this work provides an adequate approach for the fabrication of nanostructured devices with photocatalytic properties for the degradation of organic compounds
dc.languageen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.sourceCoatings, 13(1), 179
dc.subjectNanoparticles
dc.subjectAlumina
dc.subjectPhotocatalysis
dc.titleIn situ synthesis of CuO/Cu2O nanoparticle-coating nanoporous alumina membranes with photocatalytic activity under visible light radiation
dc.typeArticle


Este ítem pertenece a la siguiente institución