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 publicationJournal articleAcademic researchpeer-review

34 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 languageEnglish
Pages (from-to)2147-2155
Number of pages9
JournalJournal of Nanoparticle Research
Volume13
Issue number5
DOIs
Publication statusPublished - 1 May 2011
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

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