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 publicationJournal articleAcademic researchpeer-review

43 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 languageEnglish
Pages (from-to)64-70
Number of pages7
JournalChemical Engineering Journal
Volume165
Issue number1
DOIs
Publication statusPublished - 15 Nov 2010
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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