NDLI: Hierarchical flower-like Co3−xFexO4 ferrite hollow spheres: facile synthesis and catalysis in the degradation of methylene blue

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Hierarchical flower-like Co_3−xFe_xO₄ ferrite hollow spheres: facile synthesis and catalysis in the degradation of methylene blue

Back cover

Nanoscale Vol - 5 Issue - 6

Nanoscale Vol - 5 Issue - 5

Nanoscale Vol - 5 Issue - 4

Nanoscale Vol - 5 Issue - 3

Hierarchical flower-like Co_3−xFe_xO₄ ferrite hollow spheres: facile synthesis and catalysis in the degradation of methylene blue

Content Provider	Royal Society of Chemistry (RSC)
Author	Yang, Wenshu Ke, Xi Pan, Shunhao Lu, Baoping Hao, Jinhui Tang, Jilin Zhang, Zhe Zhang, Bailin
Copyright Year	2013
Abstract	A facile method is proposed for the synthesis of three-dimensional (3D) flower-like Co3−xFexO4 ferrite (CF) hollow spheres, using SiO2@FeOOH as precursor. The CF hollow spheres are efficient for the catalytic degradation of methylene blue (MB) in the presence of H2O2 at 80 °C. The obtained CF hollow spheres were characterized using transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction, X-ray photo-electron spectroscopy, and N2 adsorption–desorption isotherm measurements. The formation of 3D hierarchical flower-like superstructure was influenced by the relative amount of urea used. As the mole ratio of CoCl2 and urea decreased, the structure of the products was tailored from yolk-like spheres to hollow spheres with different sized void interiors. Moreover, N2 adsorption–desorption isotherm analysis showed that the CF hollow spheres have a large specific surface area (163 m2 g−1) which provided more activity sites. The CF hollow spheres can catalyze the oxidation of MB efficiently. These results indicate that the designed CF hollow spheres exhibit promising capability for the degradation of dyes.
Starting Page	3078
Ending Page	3082
Page Count	5
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	5
Issue Number	7
Journal	Nanoscale
DOI	10.1039/c3nr00041a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ferrite core X-ray crystallography Spectroscopy Urea Hydrogen peroxide Transmission electron microscopy Nevus Specific surface area CompactFlash Scanning electron microscope Three-dimensional space Methylene blue
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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