Decolorization of RB-5 azo dye with La0.8Sr0.2Fe1-yCoyO3±d(LSFC) perovskite
Por:
Pérez-Martínez T.M., de la Huerta-Hernández G.E., Rodríguez-Flores T., Chávez-Carvayar J.A., Hernández-Pérez I.
Publicada:
1 ene 2024
Ahead of Print:
1 ago 2024
Resumen:
In the present study, the sonochemical synthesis of a La0.8Sr0.2Fe1-yCoyO3 ± d type perovskite (LSFC) was carried out, varying the Cobalt content. The synthesized samples were characterized for their thermal (ATG, ATD), structural (XRD, TEM), morphological (SEM) and optical (RD-UV–Vis and PL) properties, as well as the evaluation of their photocatalytic performance, using as a model contaminant the textile dye-azo black-reactive acid No 5 (RB5). There are few studies related to the photodegradation of textile dyes using perovskite-type materials. The materials were synthesized by the sonochemical method and heat treated at 500 °C. The characterization of all samples showed a cubic structure, with irregular morphologies, the optical band gap oscillates between 3.7 and 3.8 eV depending on the Co content. The photoactivity results show that the best performance was presented for the sample with a Co content of 0.2, reaching a removal of 98% in 120 min under UV irradiation. © The Author(s), under exclusive licence to The Materials Research Society 2024.
Filiaciones:
Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, CDMX. C.P. 02200, Av. San Pablo No. 180. Azcapotzalco, Ciudad de México, Mexico
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S/N. C.U. CDMX. C.P. 04510, Mexico City, Mexico
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