dc.creatorFerrer, Martha
dc.creatorMuñoz-Saldaña, J.
dc.creatorAyala-Ayala, M. T.
dc.date.accessioned2021-12-10T21:08:22Z
dc.date.accessioned2022-09-28T18:18:58Z
dc.date.available2021-12-10T21:08:22Z
dc.date.available2022-09-28T18:18:58Z
dc.date.created2021-12-10T21:08:22Z
dc.date.issued2021-03-21
dc.identifierhttp://repositorio.ufps.edu.co/handle/ufps/5924
dc.identifier10.1007/s11666-021-01182-2
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3701477
dc.description.abstractPhotoactive tetragonal bismuth oxide powder with different semiconducting characteristics was synthesized from Bi-pellets by flame spray oxidation. The effect of feedstock particle size and standoff distance (SOD) on the physical properties of β-Bi2O3 keeping constant the fuel/oxygen ratio is here reported. The flame spray oxidized powder was collected either from evaporated or in-flight particles quenched in water. The combination of flame spray processing parameters led to different β-Bi2O3 phase contents, oxidation characteristics, size distribution (nanometric and micrometric sized), morphology, and optical properties of the sprayed powder. The highest micrometric β-Bi2O3 content quenched in water was obtained at a SOD of 30 cm using a particle size distribution of 12-60 μm of Bi-feedstock. The obtained powder from in-flight particles collected in water allowed us to analyze the oxidation characteristics of bismuth. Micrometric powder shows the synthesis of snowman-like Bi/β-Bi2O3 Janus particles. The nanometric sized Bi2O3 powder was continuously obtained by spray oxidation, where its collection efficiency depends on processing parameters and showed spherical morphology and a highly pure tetragonal phase with narrow visible light absorbance (Eg = 2.26 eV). These optical characteristics indicate that the obtained β-Bi2O3 powder is suitable for high-performance visible-light photocatalyst.
dc.languageeng
dc.publisherJournal of Thermal Spray Technology
dc.relationJournal of Thermal Spray Technology
dc.relationVol.30 (2021)
dc.relation1119
dc.relation1107
dc.relation30
dc.relationAyala-Ayala, M.T., Ferrer-Pacheco, M.Y. & Muñoz-Saldaña, J. Manufacturing of Photoactive β-Bismuth Oxide by Flame Spray Oxidation. J Therm Spray Tech 30, 1107–1119 (2021). https://doi.org/10.1007/s11666-021-01182-2
dc.relationJournal of Thermal Spray Technology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rightsSpringer Nature has partnered with Copyright Clearance Center's RightsLink service to offer a variety of options for reusing this content.
dc.sourcehttps://link.springer.com/article/10.1007%2Fs11666-021-01182-2
dc.titleManufacturing of Photoactive β-Bismuth Oxide by Flame Spray Oxidation
dc.typeArtículos de revistas


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