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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 3/2018

26.10.2017

Synthesis of SrFe12O19/SiO2/TiO2 composites with core/shell/shell nano-structure and evaluation of their photo-catalytic efficiency for degradation of methylene blue

verfasst von: Fatemeh Bavarsiha, Masoud Rajabi, Mehdi Montazeri-Pour

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 3/2018

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Abstract

The SrFe12O19/SiO2/TiO2 nanostructures with hard magnetic core were successfully synthesized through the facile and efficient wet chemical processes. At first, nanocrystalline strontium hexaferrite (SrFe12O19) powder was prepared using a new co-precipitation route in ethanol/water media. In the next step, SrFe12O19/SiO2 composites were produced by well-known Stöber method using tetraethyl orthosilicate as precursor. Finally titania was coated on SrFe12O19/SiO2 composite particles using titanium n-butoxide precursor. The core/shell/shell nanostructures have been characterized by means of X-ray diffraction, vibrating sample magnetometer, Fourier transform infrared spectra, field emission scanning electron microscopy, and transmission electron microscopy equipped with an energy-dispersive X-ray spectroscopy detector. The catalytic activity of SrFe12O19/SiO2/TiO2 composites has been investigated in the degradation of methylene blue dye under UV illumination. The results indicated that the obtained SrFe12O19/SiO2/TiO2 composite has photo-catalytic properties and can be retrieved by magnetic separation. The photo-degradation of methylene blue dye was about 80% in the presence of photo-catalyst powder at irradiation time of 180 min. Recycled composite particles could be used again.
Vorheriger Artikel Optically important ZnS semiconductor nanoparticles synthesized using organic waste banana peel extract and their characterization
Nächster Artikel Properties of nickel doped In2S3 thin films deposited by spray pyrolysis technique

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Metadaten
Titel
Synthesis of SrFe12O19/SiO2/TiO2 composites with core/shell/shell nano-structure and evaluation of their photo-catalytic efficiency for degradation of methylene blue
verfasst von
Fatemeh Bavarsiha
Masoud Rajabi
Mehdi Montazeri-Pour
Publikationsdatum
26.10.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 3/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-8098-5

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