Porous " brick-like" NiFe2O4nanocrystals 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" NiFe₂O₄nanocrystals loaded with Ag species towards effective degradation of toluene

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

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

64 Citations (Scopus)

Abstract

Porous and " brick-like" NiFe2O4nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4catalyst was prepared based on the porous NiFe2O4by 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/NiFe2O4and NiFe2O4samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4sample calcined at 773K exhibited the highest efficiency for the degradation of toluene.

Original language	English
Pages (from-to)	64-70
Number of pages	7
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

Keywords

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

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

More information

10.1016/j.cej.2010.08.060

Cite this

@article{92b6ce3c6fb0498f9de4699d3e53be0f,

title = "Porous {"} brick-like{"} NiFe2O4nanocrystals loaded with Ag species towards effective degradation of toluene",

abstract = "Porous and {"} brick-like{"} NiFe2O4nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4catalyst was prepared based on the porous NiFe2O4by 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/NiFe2O4and NiFe2O4samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4sample calcined at 773K exhibited the highest efficiency for the degradation of toluene.",

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

author = "Zhengru Zhu and Xinyong Li and Qidong Zhao and Hong Li and Yu Shen and Guohua Chen",

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T1 - Porous " brick-like" NiFe2O4nanocrystals 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

PY - 2010/11/15

Y1 - 2010/11/15

N2 - Porous and " brick-like" NiFe2O4nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4catalyst was prepared based on the porous NiFe2O4by 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/NiFe2O4and NiFe2O4samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4sample calcined at 773K exhibited the highest efficiency for the degradation of toluene.

AB - Porous and " brick-like" NiFe2O4nanoparticles were synthesized by a modified chemical co-precipitation route with calcination temperatures of 773K, 873K and 973K, respectively. The Ag/NiFe2O4catalyst was prepared based on the porous NiFe2O4by 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/NiFe2O4and NiFe2O4samples was comparatively studied under xenon lamp irradiation. The results indicate that the Ag/NiFe2O4sample calcined at 773K exhibited the highest efficiency for the degradation of toluene.

KW - Ag loading

KW - Calcination

KW - Chemical co-precipitation

KW - Photocatalytic degradation

KW - Specific surface photovoltage

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DO - 10.1016/j.cej.2010.08.060

M3 - Journal article

SN - 1385-8947

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JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

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