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Energy Band Structure and Photocatalytic Property of Fe-doped Zn 2 TiO 4 Material

2009; Wiley; Volume: 30; Issue: 12 Linguagem: Inglês

10.5012/bkcs.2009.30.12.3021

1229-5949

Jum-Suk Jang, Pramod H. Borse, Jae‐Sung Lee, Kwon-Taek Lim, Ok‐Sang Jung, Euh-Duck Jeong, Jong‐Seong Bae, Mi‐Sook Won, Hyun-Gyu Kim,

Microwave Dielectric Ceramics Synthesis

$Zn_2Ti_{1-x}Fe_xO_4\;(0\;{\leq}\;x\;{\leq}\;0.7)$ 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)