Header menu link for other important links
X
Rapid and efficient visible light photocatalytic dye degradation using AFe2O4 (A = Ba, Ca and Sr) complex oxides
Shanmugasundaram Prema Suriyaraj
Published in Elsevier Ltd
2016
Volume: 210
   
Pages: 43 - 50
Abstract
Photocatalytic activity of spinel type complex oxides has been investigated in this study. Alkaline earth ferrites AFe2O4 (A = Ba, Ca, Sr) were synthesized by sol-gel method. Structural characterizations reveal that the synthesized ferrites have orthorhombic crystal structures with different space groups and cell dimensions when they have different alkaline earth metals in their A site. All the synthesized ferrites exhibited their bandgap in the range 2.14-2.19 eV. Their photocatalytic activities were studied using congo red dye under sunlight and xenon lamp radiation. The substitution of Ba, Ca and Sr at A site of these ferrites had varying impact on dye degradation process. Under xenon lamp irradiation, BaFe2O4 exhibited the highest percentage of dye degradation (92% after 75 min). However, CaFe2O4 showed the fastest degradation of the dye (70% within 15 min). In the absence of irradiation, SrFe2O4 showed the highest dye adsorption (44% after 75 min). © 2016 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
PublisherData powered by TypesetElsevier Ltd
ISSN09215107
Open AccessNo
Concepts (25)
  •  related image
    Alkaline earth metals
  •  related image
    ARC LAMPS
  •  related image
    Azo dyes
  •  related image
    Calcium
  •  related image
    Complexation
  •  related image
    Degradation
  •  related image
    DISCHARGE LAMPS
  •  related image
    Earth (planet)
  •  related image
    Electric lamps
  •  related image
    FERRITES
  •  related image
    Irradiation
  •  related image
    Photocatalysis
  •  related image
    Photocatalysts
  •  related image
    Sol-gel process
  •  related image
    Sol-gels
  •  related image
    Structural metals
  •  related image
    Alkaline earth
  •  related image
    CELL DIMENSIONS
  •  related image
    Congo red
  •  related image
    Dye degradation
  •  related image
    ORTHORHOMBIC CRYSTAL STRUCTURES
  •  related image
    Photocatalytic activities
  •  related image
    PHOTOCATALYTIC DYE DEGRADATIONS
  •  related image
    Structural characterization
  •  related image
    Barium