Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe2O4particles with porous superstructure fabricated by a modified chemical coprecipitation method

Zhengru Zhu; Xinyong Li; Qidong Zhao; Yong Shi; Hong Li; Guohua Chen

doi:10.1007/s11051-010-9973-7

Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe₂O₄particles with porous superstructure fabricated by a modified chemical coprecipitation method

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

Research output: Journal article publication › Journal article › Academic research › peer-review

38 Citations (Scopus)

Abstract

In this study, nanocrystalline CoFe2O4particles 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 CoFe2O4samples 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. 2010.

Original language	English
Pages (from-to)	2147-2155
Number of pages	9
Journal	Journal of Nanoparticle Research
Volume	13
Issue number	5
DOIs	https://doi.org/10.1007/s11051-010-9973-7
Publication status	Published - 1 May 2011
Externally published	Yes

Keywords

4-Chlorophenol
Calcination
Catalysts
Chemical co-precipitation
Photocatalytic degradation
Specific surface area

ASJC Scopus subject areas

Bioengineering
Atomic and Molecular Physics, and Optics
General Chemistry
Modelling and Simulation
General Materials Science
Condensed Matter Physics

More information

10.1007/s11051-010-9973-7

Cite this

@article{50b191373b48423a81872f7686e98fb8,

title = "Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe2O4particles with porous superstructure fabricated by a modified chemical coprecipitation method",

abstract = "In this study, nanocrystalline CoFe2O4particles 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 CoFe2O4samples 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. 2010.",

keywords = "4-Chlorophenol, Calcination, Catalysts, Chemical co-precipitation, Photocatalytic degradation, Specific surface area",

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Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe₂O₄particles with porous superstructure fabricated by a modified chemical coprecipitation method. / Zhu, Zhengru; Li, Xinyong; Zhao, Qidong et al.
In: Journal of Nanoparticle Research, Vol. 13, No. 5, 01.05.2011, p. 2147-2155.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

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AU - Zhu, Zhengru

AU - Li, Xinyong

AU - Zhao, Qidong

AU - Shi, Yong

AU - Li, Hong

AU - Chen, Guohua

PY - 2011/5/1

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AB - In this study, nanocrystalline CoFe2O4particles 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 CoFe2O4samples 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. 2010.

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