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Journal of Nanoparticle Research

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01-05-2011 | Research Paper

Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe₂O₄ particles with porous superstructure fabricated by a modified chemical coprecipitation method

Authors: Zhengru Zhu, Xinyong Li, Qidong Zhao, Yong Shi, Hong Li, Guohua Chen

Published in: Journal of Nanoparticle Research | Issue 5/2011

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Abstract

In this study, nanocrystalline CoFe₂O₄ particles with porous timber-like superstructure were synthesized by a modified chemical co-precipitation route with calcination temperatures of 573, 673, 773, 873, and 973 K, respectively. The structural properties of the samples were systematically investigated by X-ray powder diffraction, scanning electronic microscopy, energy-dispersive X-ray spectra, UV–Vis diffuse reflectance spectroscopy, and Fourier transform infrared spectroscopy techniques. The photo-induced charge separation in the samples was demonstrated by surface photovoltage (SPV) measurement. The photocatalytic performances of the CoFe₂O₄ samples were comparatively studied by the degradation of 4-chlorophenol under Xe lamp irradiation. The results indicated that the sample calcined at 673 K exhibited the highest photocatalytic efficiency among the five samples.

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Title: Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe2O4 particles with porous superstructure fabricated by a modified chemical coprecipitation method
Authors: Zhengru Zhu
Xinyong Li
Qidong Zhao
Yong Shi
Hong Li
Guohua Chen
Publication date: 01-05-2011
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 5/2011
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-010-9973-7

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