Effect of drying process and calcination on the structural and magnetic properties of cobalt ferrite

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dc.creatorSunday Joseph Olusegun
dc.creatorErico Tadeu Fraga Freitas
dc.creatorLuciano Roni Silva Lara
dc.creatorHumberto Osório Stumpf
dc.creatorNelcy Della Santina Mohallem
dc.date.accessioned2022-10-19T18:19:37Z
dc.date.accessioned2025-09-09T00:17:44Z
dc.date.available2022-10-19T18:19:37Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2019.01.197
dc.identifier.issn0272-8842
dc.identifier.urihttps://hdl.handle.net/1843/46409
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofCeramics international
dc.rightsAcesso Restrito
dc.subjectNanopartículas
dc.subjectRaios X
dc.subjectDifração
dc.subjectMicroscopia eletrônica
dc.subjectCobalto
dc.subjectFerrita
dc.subjectAdsorção
dc.subjectCarbenos (Compostos de metileno)
dc.subject.otherSpray drying process
dc.subject.otherSpecific surface area
dc.subject.otherMethylene blue adsorption
dc.subject.otherMagnetic properties
dc.titleEffect of drying process and calcination on the structural and magnetic properties of cobalt ferrite
dc.typeArtigo de periódico
local.citation.epage8743
local.citation.issue7 Part A
local.citation.spage8734
local.citation.volume45
local.description.resumoSynthesis of CoFe2O4 nanoparticles was carried out using a co-precipitation method. The resulting precipitate was dried by using conventional method (oven), and spray drying process. The products obtained from the two drying processes were calcined at 500 and 700 °C; and characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) transmission electron microscopy (TEM), and N2 gas adsorption technique. Magnetic measurements were performed on a SQUID magnetometer. The magnetic saturation value (76 emu g−1) of the spray dried cobalt ferrite calcined at 700 °C (SD-700) was higher than its corresponding oven-dried sample. The as-received spray dried CoFe2O4 nanoplates (SD-100) has the highest BET specific surface area (138 m2 g−1), while the oven-dried sample calcined at 700 °C (OD-700) has the lowest area (47 m2 g−1). Cobalt ferrite samples obtained from the two drying processes were briefly applied to adsorb methylene blue solution as a cationic dye model to know the effect of drying process on the adsorption of dye. The studies showed that all the spray dried samples performed better in adsorbing methylene blue (MB) solution. Energy-filtered TEM (EFTEM) analysis that was carried out on SD-700 ascertained the adsorption of MB on its surface.
local.identifier.orcidhttps://orcid.org/0000-0002-2479-0540
local.identifier.orcidhttps://orcid.org/0000-0002-8509-8662
local.identifier.orcidhttps://orcid.org/0000-0001-7756-0987
local.identifier.orcidhttps://orcid.org/0000-0002-9094-4536
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0272884219302147

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