Please use this identifier to cite or link to this item:
Title: Photocatalytic evaluation of the magnetic core@shell system (Co,Mn)Fe2O4@TiO2 obtained by the modified Pechini method
Authors: Neris, A.M.
Schreiner, W.H.
Gonçalves, Charlie Salvador
Silva, Ubiratan Correia
Feitosa, Carlos Chesman de Araújo
Silva, Elson Longo da
Santos, I.M.G.
Keywords: Core-shell;Anatase;(Co,Mn)Fe2O4@TiO2;Photocatalysis
Issue Date: Mar-2018
Publisher: Elsevier
Citation: NERIS, A.M.; SCHREINER, W.H.; GONÇALVES, C.S.; SILVA, U.C.; FEITISA, C.C.A.; LONGO, E.; SANTOS, I.M.G. Photocatalytic evaluation of the magnetic core@shell system (Co,Mn)Fe 2 O 4 @TiO 2 obtained by the modified Pechini method. Materials science and engineering: B, v. 229, p. 218-226, 2018. Disponível em: Acesso em: 26 maio 2020.
Portuguese Abstract: TiO2 is a highly active photocatalyst, sometimes obtained with nanometric particle size, which improves its behavior but makes its removal from aqueous media more difficult. To avoid this drawback, this work aims to obtain a photocatalyst easily removable from aqueous media using magnetism. The core@shell system (Co,Mn)Fe2O4@TiO2 was prepared by adding commercial (Co,Mn)Fe2O4 nanoparticles to the titanium polymeric resin synthesized by the modified Pechini method. Optimization of photocatalyst properties was achieved by variation of the TiO2:ferrite ratio, synthesis temperature and time, followed by their evaluation in photodegradation of an azo dye. The highest efficiency was attained when anatase was the major crystalline phase, whereas TiO2:ferrite ratio was limited to 90% to retain the magnetic properties, which enabled its removal from aqueous media using simple magnets. The system (Co,Mn)Fe2O4@TiO2, synthesized with 90% TiO2 and calcined at 500 °C for 8 h, presented a discoloration of 76.3% after 16 h of exposure to UV light
ISSN: 0921-5107
Appears in Collections:CCET - DFTE - Artigos publicados em periódicos

Files in This Item:
File Description SizeFormat 
PhotocatalyticEvaluation_Chesman_2018.pdf130,06 kBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons