Photocatalytic activity of visible light active Sr-hexaferrite prepared by solid-state reaction and the pechini methods
Por:
Ayala, M. F. Ramirez, Herrera-Gonzalez, A. M., Perez-Juache, T. J., Salazar-Munoz, V. E., Espericueta, D., Cabal-Velarde, J. G., Garcia-Gallegos, J. H., Lobo-Guerrero, A.
Publicada:
1 ago 2023
Resumen:
In this work, strontium hexaferrite (SrFe12O19) was prepared using two
different methods, the solid-state reaction and the sol-gel pechini
methods. In each case, the structural properties and microstructural
features were analyzed in order to evaluate their influence on the
photocatalytic activity of the strontium hexaferrite. In addition, the
magnetic properties of each sample were also investigated. The analysis
of the photocatalytic activity was done using methylene blue as a test
dye. The results show that the fabrication method significantly impacts
how the photocatalytic activity occurs. Firstly, the bandgap energy of
the sample obtained by the solid-state reaction method turned out to be
smaller than that obtained by the sol-gel pechini method. This behavior
was attributed to the structural differences shown between the two
samples. On the other hand, particle size also has a significant effect
on photochemical reactions. However, smaller particle sizes make it
difficult for photons to transport in the system, resulting in reduced
photocatalytic activity. In this case, better results were obtained from
the sample obtained from the solid-state reaction method.
Filiaciones:
Ayala, M. F. Ramirez:
Univ Autonoma Estado Hidalgo, Area Acad Ciencias Tierra & Mat, Carr Pachuca Tulancingo Km 4-5, Hidalgo 42184, Mexico
Herrera-Gonzalez, A. M.:
Univ Autonoma Estado Hidalgo, Area Acad Ciencias Tierra & Mat, Carr Pachuca Tulancingo Km 4-5, Hidalgo 42184, Mexico
Perez-Juache, T. J.:
Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Antigua Carr Patzcuaro 8701, Morelia 58190, Mexico
Salazar-Munoz, V. E.:
Univ Autonoma San Luis Potosi, Fac Ingn, Ave Manuel Nava 8, San Luis Potosi 78290, Mexico
Espericueta, D.:
(Corresponding Author), Tecnol Nacl Mexico, Inst Tecnol Super San Luis Potosi, Capital Carr Mexico Piedras Negras km 189, San Luis Potosi 78421, San Luis Potosi, Mexico
Tecnol Nacl Mexico, Inst Tecnol Super San Luis Potosi, Capital Carr Mexico Piedras Negras km 189, San Luis Potosi 78421, San Luis Potosi, Mexico
Cabal-Velarde, J. G.:
Tecnol Nacl Mexico, Inst Tecnol Super Irapuato, Carretera Irapuato Silao Km 12-5, Irapuato 36821, Gto, Mexico
Garcia-Gallegos, J. H.:
Univ Tecnol San Juan del Rio, Div Quim & Energias Renovables, San Juan Del Rio 76800, Qro, Mexico
Lobo-Guerrero, A.:
(Corresponding Author), Univ Autonoma Estado Hidalgo, Area Acad Ciencias Tierra & Mat, Carr Pachuca Tulancingo Km 4-5, Hidalgo 42184, Mexico
Univ Autonoma Estado Hidalgo, Area Acad Ciencias Tierra & Mat, Carr Pachuca Tulancingo Km 4-5, Hidalgo 42184, Mexico
gold, Gold
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