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Magnetically Separable Fe3O4/TiO2 Hollow Spheres: Fabrication and Photocatalytic Activity
Abstract
Well-defined magnetic separable, hollow spherical Fe 3 O 4 /TiO 2 hybrid photocatalysts were successfully prepared through a poly(styrene−acrylic acid) (PSA) template method. This bifunctional product was characterized in terms of the particle size, surface morphology, chemical composition, and magnetic properties using transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), and X-ray powder diffraction (XRD) patterns. The M − H hysteresis loop for Fe 3 O 4 /TiO 2 hollow spheres indicates that the composite spheres show superparamagnetic characteristics at room temperature. These magnetic TiO 2 composites with hollow nature exhibit good photocatalytic activity under UV light irradiation and can be recycled six times by magnetic separation without major loss of activity. This method can be further applied to synthesize other bifunctional hollow spheres, such as Fe 3 O 4 /SnO 2 and Fe 3 O 4 /CdS.
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Cites
Environmental applications of semiconductor photocatalysis
Hoffmann, M. R., Martin, S. T., Choi, W., & Bahnemann, D. W. (1995) · Chemical Reviews · doi:10.1021/cr00033a004 · Cited by 18,495
Cited by
Composite Titanium Dioxide Nanomaterials
Dahl, M., Liu, Y., & Yin, Y. (2014) · Chemical Reviews · doi:10.1021/cr400634p · Cited by 687
Kumar, S., T, S., Kumar, B., Baruah, A., & Shanker, V. (2013) · The Journal of Physical Chemistry C · doi:10.1021/jp409651g · Cited by 420
Xie, G., Xi, P., Liu, H., Chen, F., Huang, L., Shi, Y., Hou, F., Zeng, Z., Shao, C., & Wang, J. (2012) · J. Mater. Chem. · doi:10.1039/c1jm13433g · Cited by 381
Magnetic composite Fe3O4/CeO2 for adsorption of azo dye
Gao, S., Zhang, W., Zhou, H., & Chen, D. (2018) · Journal of Rare Earths · doi:10.1016/j.jre.2018.04.002 · Cited by 40
Metadata
- Authors
- Xuan, S., Jiang, W., Gong, X., Hu, Y., & Chen, Z.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-12-18
- Volume
- 113
- Issue
- 2
- Pages
- 553-558
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2029692116
- Cited by
- 307
- References
- 1
- FWCI
- 6.04
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xuan, S., Jiang, W., Gong, X., Hu, Y., & Chen, Z. (2009). Magnetically Separable Fe3O4/TiO2 Hollow Spheres: Fabrication and Photocatalytic Activity. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp8073859
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