Porous " brick-like" NiFe2O4 nanocrystals loaded with Ag species towards effective degradation of toluene

Zhengru Zhu; Xinyong Li; Qidong Zhao; Hong Li; Yu Shen; Guohua Chen

doi:10.1016/j.cej.2010.08.060

Porous " brick-like" NiFe₂O₄ nanocrystals loaded with Ag species towards effective degradation of toluene

Zhengru Zhu, Xinyong Li, Qidong Zhao, Hong Li, Yu Shen, Guohua Chen

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

64 Citations (Scopus)

Abstract

Porous and " brick-like" NiFe₂O₄ nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe₂O₄ catalyst was prepared based on the porous NiFe₂O₄ by the incipient wetness impregnation strategy, which showed excellent photoelectric property and catalytic activity. The structural properties of these samples were systematically investigated by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), energy-dispersive X-ray spectra (EDX), UV-vis diffuse reflectance spectroscopy (DRS), and Fourier transform infrared spectroscopy (FT-IR) techniques. The photo-induced charge separation in the samples was demonstrated by surface photovoltage (SPV) measurement. The photocatalytic degradation of toluene by the Ag/NiFe₂O₄ and NiFe₂O₄ samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe₂O₄ sample calcined at 773K exhibited the highest efficiency for the degradation of toluene. © 2010 Elsevier B.V.

Original language	English
Pages (from-to)	64-70
Journal	Chemical Engineering Journal
Volume	165
Issue number	1
DOIs	https://doi.org/10.1016/j.cej.2010.08.060
Publication status	Published - 15 Nov 2010
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

Ag loading
Calcination
Chemical co-precipitation
Photocatalytic degradation
Specific surface photovoltage

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title = "Porous {"} brick-like{"} NiFe2O4 nanocrystals loaded with Ag species towards effective degradation of toluene",

abstract = "Porous and {"} brick-like{"} NiFe2O4 nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4 catalyst was prepared based on the porous NiFe2O4 by the incipient wetness impregnation strategy, which showed excellent photoelectric property and catalytic activity. The structural properties of these samples were systematically investigated by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), energy-dispersive X-ray spectra (EDX), UV-vis diffuse reflectance spectroscopy (DRS), and Fourier transform infrared spectroscopy (FT-IR) techniques. The photo-induced charge separation in the samples was demonstrated by surface photovoltage (SPV) measurement. The photocatalytic degradation of toluene by the Ag/NiFe2O4 and NiFe2O4 samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4 sample calcined at 773K exhibited the highest efficiency for the degradation of toluene. {\textcopyright} 2010 Elsevier B.V.",

keywords = "Ag loading, Calcination, Chemical co-precipitation, Photocatalytic degradation, Specific surface photovoltage",

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T1 - Porous " brick-like" NiFe2O4 nanocrystals loaded with Ag species towards effective degradation of toluene

AU - Zhu, Zhengru

AU - Li, Xinyong

AU - Zhao, Qidong

AU - Li, Hong

AU - Shen, Yu

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].

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Y1 - 2010/11/15

N2 - Porous and " brick-like" NiFe2O4 nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4 catalyst was prepared based on the porous NiFe2O4 by the incipient wetness impregnation strategy, which showed excellent photoelectric property and catalytic activity. The structural properties of these samples were systematically investigated by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), energy-dispersive X-ray spectra (EDX), UV-vis diffuse reflectance spectroscopy (DRS), and Fourier transform infrared spectroscopy (FT-IR) techniques. The photo-induced charge separation in the samples was demonstrated by surface photovoltage (SPV) measurement. The photocatalytic degradation of toluene by the Ag/NiFe2O4 and NiFe2O4 samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4 sample calcined at 773K exhibited the highest efficiency for the degradation of toluene. © 2010 Elsevier B.V.

AB - Porous and " brick-like" NiFe2O4 nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4 catalyst was prepared based on the porous NiFe2O4 by the incipient wetness impregnation strategy, which showed excellent photoelectric property and catalytic activity. The structural properties of these samples were systematically investigated by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), energy-dispersive X-ray spectra (EDX), UV-vis diffuse reflectance spectroscopy (DRS), and Fourier transform infrared spectroscopy (FT-IR) techniques. The photo-induced charge separation in the samples was demonstrated by surface photovoltage (SPV) measurement. The photocatalytic degradation of toluene by the Ag/NiFe2O4 and NiFe2O4 samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4 sample calcined at 773K exhibited the highest efficiency for the degradation of toluene. © 2010 Elsevier B.V.

KW - Ag loading

KW - Calcination

KW - Chemical co-precipitation

KW - Photocatalytic degradation

KW - Specific surface photovoltage

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