Preparation and characteristics of Fe3O4-BaTiO3 heterostructural nanocomposite as photocatalyst

Preparation and characteristics of Fe3O4-BaTiO3 heterostructural nanocomposite as photocatalyst Magnetically separable and reusable Fe3O4-BaTiO3 nanocomposite with heterostructure was prepared by using solvothermal, sol–gel, and improved annealing methods in this work. The results indicated that Fe3O4-BaTiO3 could be successfully obtained without overoxidation by annealing the polycrystalline Fe3O4 microspheres enveloped with BaTiO3 precursor under 700 °C in a thin quartz tube. The short periods of heating and cooling in the annealing is also essential for the formation of Fe3O4-BaTiO3. The morphology, phase, and saturation magnetization of the as-prepared core–shell hybrid structure were characterized by scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer, respectively. Such heterostructural material exhibited obvious photodegradation ability towards methyl orange and orange II under UV-light illumination. This experimental exploration also suggests a relatively easy method to avoid the overoxidation of nanocomposites prepared under high temperature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Preparation and characteristics of Fe3O4-BaTiO3 heterostructural nanocomposite as photocatalyst

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1412-9
Publisher site
See Article on Publisher Site

Abstract

Magnetically separable and reusable Fe3O4-BaTiO3 nanocomposite with heterostructure was prepared by using solvothermal, sol–gel, and improved annealing methods in this work. The results indicated that Fe3O4-BaTiO3 could be successfully obtained without overoxidation by annealing the polycrystalline Fe3O4 microspheres enveloped with BaTiO3 precursor under 700 °C in a thin quartz tube. The short periods of heating and cooling in the annealing is also essential for the formation of Fe3O4-BaTiO3. The morphology, phase, and saturation magnetization of the as-prepared core–shell hybrid structure were characterized by scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer, respectively. Such heterostructural material exhibited obvious photodegradation ability towards methyl orange and orange II under UV-light illumination. This experimental exploration also suggests a relatively easy method to avoid the overoxidation of nanocomposites prepared under high temperature.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 8, 2013

References

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