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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Photocatalytic Hydrogen Production in Water-Methanol Mixture over Iron-doped CaTiO3

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Title
Photocatalytic Hydrogen Production in Water-Methanol Mixture over Iron-doped CaTiO3
Other Titles
Photocatalytic Hydrogen Production in Water-Methanol Mixture over Iron-doped CaTiO3
Author
Jang, J. S.Borse, P. H.Lee, Jae SungLim, K. T.Jung, O-S.Jeong, E. D.Bae, J. S.Kim, H. G.
Keywords
Fe doped CaTiO3; Solid state reaction; Photocatalysis; Visible light; Hydrogen production
Issue Date
2011-01
Publisher
KOREAN CHEMICAL SOC
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.32, no.1, pp.95 - 99
Abstract
CaTi1-xFexO3 (0 <= x <= 0.4) solid solution photocatalysts were synthesized by iron doping during the conventional solid state reaction at 1100 degrees C for 5 h and characterized by ultraviolet-visible (UV-vis) absorption spectroscopy, X-ray diffraction, morphological analysis. We found that CaTi1-xFexO3 samples not only absorb UV but also the visible light photons. This is because the Fe substitution at Ti-site in CaTi1-xFexO3 lattice induces the band transition from Fe3d to the Fe3d+ Ti3d hybrid orbital. The photocatalytic activity of Fe doped CaTiO(3)samples for hydrogen production under UV light irradiation decreased with the increase in the Fe concentration. There exists an optimized concentration of iron in CaTiO3, which yields a maximum photocatalytic activity under visible light (lambda >= 420 nm) photons
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DOI
10.5012/bkcs.2011.32.1.95
ISSN
1229-5949
Appears in Collections:
ECHE_Journal Papers
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