Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe2O4 particles 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 CoFe₂O₄ particles 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 Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

38 Citations (Scopus)

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 CoFe ₂O₄ 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. © Springer Science+Business Media B.V. 2010.

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

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

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

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@article{970005056f8b41d5be2e0586ea0ce94e,

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

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 CoFe 2O4 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. {\textcopyright} Springer Science+Business Media B.V. 2010.",

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

author = "Zhengru Zhu and Xinyong Li and Qidong Zhao and Yong Shi and Hong Li and Guohua Chen",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2011",

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doi = "10.1007/s11051-010-9973-7",

language = "English",

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publisher = "Springer Netherlands",

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Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe₂O₄ particles 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, 05.2011, p. 2147-2155.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Surface photovoltage properties and photocatalytic activities of nanocrystalline CoFe2O4 particles with porous superstructure fabricated by a modified chemical coprecipitation method

AU - Zhu, Zhengru

AU - Li, Xinyong

AU - Zhao, Qidong

AU - Shi, Yong

AU - Li, Hong

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2011/5

Y1 - 2011/5

N2 - 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 CoFe 2O4 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. © Springer Science+Business Media B.V. 2010.

AB - 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 CoFe 2O4 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. © Springer Science+Business Media B.V. 2010.

KW - 4-Chlorophenol

KW - Calcination

KW - Catalysts

KW - Chemical co-precipitation

KW - Photocatalytic degradation

KW - Specific surface area

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