Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Energy Band Structure and Photocatalytic Property of Fe-doped Zn2TiO4 Material

  • Jang, Jum-Suk (Department of Chemical Engineering, Pohang University of Science and Technology) ;
  • Borse, Pramod H. (Department of Chemical Engineering, Pohang University of Science and Technology,Centre for Nanomaterials, International Advanced Research Centre for Powder Metallurgy and New Materials(ARC International)) ;
  • Lee, Jae-Sung (Department of Chemical Engineering, Pohang University of Science and Technology) ;
  • Lim, Kwon-Taek (Department of Imaging System Engineering, Pukyong National University) ;
  • Jung, Ok-Sang (Department of Chemistry (BK21), Pusan National University) ;
  • Jeong, Euh-Duck (Busan Center, Korea Basic Science Institute) ;
  • Bae, Jong-Seong (Busan Center, Korea Basic Science Institute) ;
  • Won, Mi-Sook (Busan Center, Korea Basic Science Institute) ;
  • Kim, Hyun-Gyu (Busan Center, Korea Basic Science Institute)
  • Published : 2009.12.20
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Abstract

$Zn_2Ti_{1-x}Fe_xO_4\;(0\;{\leq}\;x\;{\leq}\;0.7)$ photocatalysts were synthesized by polymerized complex (PC) method and investigated for its physico-chemical as well as optical properties. $Zn_2Ti_{1-x}Fe_xO_4$ can absorb not only UV light but also visible light region due to doping of Fe in the Ti site of $Zn_2TiO_4$ lattice because of the band transition from Fe 3d to the Fe 3d + Ti3d hybrid orbital. The photocatalytic activity of Fe doped $Zn_2TiO_4$ samples for hydrogen production under UV light irradiation decreased with an increase in Fe concentration in $Zn_2TiO_4$. Consequently, there exists an optimized concentration of iron for improved photocatalytic activity under visible light (${\lambda}{\leq}$420 nm)

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References

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