Repositório Digital

A- A A+

Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures

.

Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures

Mostrar registro completo

Estatísticas

Título Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures
Autor Da Dalt, Silvana
Sousa, Bruna Berti de
Alves, Annelise Kopp
Bergmann, Carlos Perez
Abstract Barium monoferrite BaFe2O4 classified as permanent magnet stands out among other ceramic magnets due to its high chemical stability, corrosion resistance and low production cost. In addition, experiments conducted on photocatalytic degradation of methyl orange and UV transmittance by spectrophotometry have shown that this material has photocatalytic properties. The spinel ferrite is of importance in many technological areas such as computing, communications and security. Several techniques for synthesis have been studied to optimize the properties of this material. The synthesis of BaFe2O4 by conventional processes often occurs at temperatures above 1000 °C. In this work, we obtained the phase BaFe2O4 at low temperatures (600 °C) from the combustion reaction using nitrates and maleic anhydride as metal complexing agent. Techniques of X-ray diffraction, specific surface area, thermogravimetry analysis and photocatalytic analysis were employed to characterize the products obtained.
Contido em Materials research : ibero-american journal of materials [recurso eletrônico]. São Paulo, SP. Vol. 14, no.4 (Oct./Dec. 2011), p. 505-507
Assunto Combustão
Ferritas
Materiais magneticos
[en] Barium monoferrite
[en] Combustion reaction
[en] Photocatalysis
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/75899
Arquivos Descrição Formato
000818925.pdf (1.108Mb) Texto completo (inglês) Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.