Visible light responsive photocatalytic applications of transition metal (M = Cu, Ni and Co) doped α-Fe2O3 nanoparticles

R. Satheesh, K. Vignesh, A. Suganthi, M. Rajarajan

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36 Citations (Scopus)

Abstract

Transition metal (M = Cu, Ni and Co) doped iron oxide (Fe2O 3) nanoparticles with crystallite size in the range of 16-26 nm were successfully prepared by simple co-precipitation technique. The optical, structural and magnetic properties were characterized with UV-vis diffuse reflectance spectroscopy (UV-vis DRS), FT-IR, powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and vibrational sample magnetometer (VSM) techniques. The surface area was measured by Brunauer-Emmett-Teller (BET) analysis. The photocatalytic activity was evaluated by the degradation of Acid Red-27 (AR-27) dye under visible light irradiation. The photocatalytic activity of Cu-Fe2O3 was obviously affected by the reaction parameters. The photocatalytic activity of Cu-Fe2O3 was found to be higher than that of Fe 2O3, Ni-Fe2O3, and Co-Fe 2O3. Moreover, the photocatalyst could be reused for four times without remarkable loss of its activity.

Original languageEnglish
Pages (from-to)1956-1968
Number of pages13
JournalJournal of Environmental Chemical Engineering
Volume2
Issue number4
DOIs
Publication statusPublished - 2014
Externally publishedYes

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Keywords

  • Acid Red-27
  • Photocatalysis
  • Visible light
  • VSM

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Process Chemistry and Technology
  • Pollution
  • Waste Management and Disposal

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