Fabrication, characterization and photocatalytic performance of Fe-doped TiO2 nanotube composite for efficient degradation of water pollutants
- Title
- Fabrication, characterization and photocatalytic performance of Fe-doped TiO2 nanotube composite for efficient degradation of water pollutants
- Author
- 김종오
- Keywords
- TiO2 nanotube; Anodic oxidation; Methyl orange; Doping; UV irradiation
- Issue Date
- 2016-04
- Publisher
- TAYLOR & FRANCIS INC
- Citation
- DESALINATION AND WATER TREATMENT, v. 57, NO 19, Page. 9027-9033
- Abstract
- Pure TiO2 nanotube and Fe-doped TiO2 nanotube composite were fabricated by the electrochemical anodic oxidation process and the impregnating-calcination method, respectively. The structural and spectral properties were characterized by scanning electron microscopy, energy dispersive X-ray spectrometer, X-ray diffraction, Fourier transform infrared spectroscopy, photoluminescence, and UV-vis spectrum. These results showed that Fe was effectively deposited on the surface of TiO2 nanotube. It is demonstrated that the Fe-doped TiO2 nanotube composite can inhibit the recombination of electron-hole pairs and enhance the light harvesting ability. The photocatalytic activity of Fe-doped TiO2 nanotube composite under UV irradiation was examined in terms of color and UV-vis absorbance for the degradation of methyl orange. The photocatalytic performance of UV-C irradiation in presence of Fe-doped TiO2 nanotube composite increased obviously for the removal efficiency of color and UV-vis absorbance compared to that of UV-A irradiation, and the reaction rate constant was about 6.8 times faster than that of UV-A irradiation. This can be ascribed to the effective separation of the photo-generated charge carriers.
- URI
- https://www.tandfonline.com/doi/full/10.1080/19443994.2015.1049409http://hdl.handle.net/20.500.11754/46849
- ISSN
- 1944-3994; 1944-3986
- DOI
- 10.1080/19443994.2015.1049409
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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