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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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M-Doped TiO₂ (M=Co, Cr, Fe)의 제조 : 전자 밴드구조-(1)

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Title
M-Doped TiO₂ (M=Co, Cr, Fe)의 제조 : 전자 밴드구조-(1)
Author
Bae, Sang WonKim, Hyun GyuJi, Sang MinJang, Jum SukJeong, Euh DuckHong, Suk JoonLee, Jae Sung
Issue Date
2006-01
Publisher
한국세라믹학회
Citation
한국세라믹학회지, v.43, no.1, pp.22 - 27
Abstract
The electronic band structures of Metal-doped titanium dioxide, M-doped TiO₂ (M=Co, Cr, Fe), have been studied by using XRD, UV-vis diffuse reflectance spectrometer and FP-LAPW (Full-Potential Linearized Augmented-Plane-Wave) method. The UV-vis of M-doped TiO₂ (M=Co, Cr, Fe) showed two absorption edges; the main edge due to the titanium dioxide at 387 ㎚ and a shoulder due to the doped metals at around 560 ㎚. The band gap energies of Co, Cr and Fe-doped TiO₂ calculated by FP-LAPW method were 2.6, 2.0, and 2.5 eV, respectively. The theoretically calculated band gap energy of TiO₂ by using FP-LAPW method was the same as experimental results. FP-LAPW method will be useful for fabrication and development of photocatalysts working under visible light.
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ISSN
1229-7801
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