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- Lee, Jae Sung
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Electronic band structure and photocatalytic activity of M-doped TiO2 (M = Co and Fe)
- Alternative Title
- Electronic band structure and photocatalytic activity of M-doped TiO2 (M = Co and Fe)
- Author(s)
- Ha, M. G., Jeong, E. D., Won, M. S., Kim, H. G., Pak, H. K., Jung, J. H., Shon, B. H., Bae, S. W., Lee, Jae Sung
- Issued Date
- 2006-12
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.49, pp.S675 - S679
- Abstract
- Cobalt- or iron-doped TiO2 nanocrystals were fabricated by the hydrothermal synthesis method. The electronic structure and optical properties of the materials were studied by using XRD, UV-DRS, and the FP-LAPW (Full-Potential Linearized Augmented Plane Wave) method. The bandgap energy of Co- and Fe-doped TiO2 obtained by FP-LAPW and UV-DRS was ca. 2.6 and 2.5 eV, respectively. These doped materials absorbed visible light and exhibited photocatalytic activity for oxidative decomposition of CH3Cl to CO2 under visible light irradiation (lambda > 420 nm). However, only Fe-doped TiO2 showed the activity for CH3Cl degradation to CO2, probably due to its higher oxidation potential, as the FP-LAPW calculation indicated
- Publisher
- KOREAN PHYSICAL SOC
- ISSN
- 0374-4884
- Keyword (Author)
- FP-LAPW method, nanocrystals, hydrothermal synthesis method, anatase TiO2
- Keyword
- VISIBLE-LIGHT IRRADIATION, THIN-FILMS, TEMPERATURE, WATER, NM
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