Browse > Article
http://dx.doi.org/10.5012/bkcs.2013.34.5.1397

Enhanced Photocatalytic Activity of TiO2 Modified by e-Beam Irradiation  

Kim, Moon Su (Department of Chemical Engineering, Inha University)
Jo, Won Jun (Department of Chemical Engineering, Inha University)
Lee, Dowon (Department of Chemical Engineering, Inha University)
Baeck, Sung-Hyeon (Department of Chemical Engineering, Inha University)
Shin, Joong Hyeock (Korea Atomic Energy Research Institute)
Lee, Byung Cheol (Korea Atomic Energy Research Institute)
Publication Information
Bulletin of the Korean Chemical Society / v.34, no.5, 2013 , pp. 1397-1400 More about this Journal
Abstract
The influence of electron beam irradiation on photocatalytic activity of $TiO_2$ thin films was investigated. $TiO_2$ thin films were prepared by anodization of Ti foil, and they were then subjected to an 1 MeV electron beam. Changes in physical properties and photocatalytic activity of $TiO_2$ before and after e-beam irradiation were investigated. The crystallinity of the synthesized materials was investigated by X-ray diffraction, and the oxidation states of both titanium and oxygen were determined by X-ray photoelectron spectroscopy (XPS). The density of donor ($N_d$) and flat band potential ($E_{fb}$) were investigated by Mott-Schottky analysis, and photocurrent was measured under a 1kW Xenon lamp illumination. After e-beam irradiation, significant change of Ti oxidation state was observed. $Ti^{3+}/Ti^{4+}$ ratio increased mainly due to the surface reduction by electron, and photocurrent was observed to increase with e-beam irradiation.
Keywords
Photoelectrochemical cell; e-beam; $TiO_2$; Hydrogen; Anodizing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Senthilkumaar, S.; Porkodi, K.; Vidyalakshmi, R. J. Photochem. Photobiol. A-Chem. 2005, 170, 225.   DOI   ScienceOn
2 Li, W.; Shi, E.; Fukuda, T. Cryst. Res. Technol. 2003, 38, 847.   DOI   ScienceOn
3 Hou, X.; Liu, A. Radiat. Phys. Chem. 2008, 77, 345.   DOI   ScienceOn
4 Chen, J.; Czayka, M.; Uribe, R. Radiat. Phys. Chem. 2005, 74, 31.   DOI   ScienceOn
5 Palombari, R.; Ranchella, M.; Rol, C.; Sebastiani, G. Solar Energy Mater. Solar Cells 2002, 71, 359.   DOI   ScienceOn
6 Li, F.; Li, X. Chemosphere. 2002, 48, 1103.   DOI   ScienceOn
7 Li, X.; Li, F.; Yang, C.; Ge, W. J. Photochem. Photobiol. A-Chem. 2001, 141, 209.   DOI   ScienceOn
8 Wilhelm, S. M.; Yun, K. S.; Ballenger, L. W.; Hackerman, N. J. Electrochem. Soc. 1979, 126, 419.   DOI
9 Kennedy, J. H.; K. W. F., Jr. J. Electrochem. Soc. 1978, 125, 723.   DOI
10 Singh, A. P.; Kumari, S.; Shrivastav, R.; Dass, S.; Satsangi, V. R. J. Phys. D-Appl. Phys. 2009, 42, 085303.   DOI   ScienceOn
11 Jun, J.; Dhayal, M.; Shin, J.; Kim, J.; Getoff, N. Radiat. Phys. Chem. 2006, 75, 583.   DOI   ScienceOn
12 Wu, Y.; Lu, G.; Li, S. J. Photochem. Photobiol. A-Chem. 2006, 181, 263.   DOI   ScienceOn
13 Nikaido, M.; Furuya, S.; Kakui, T.; Kamiya, H. Adv. Powder Technol. 2009, 20, 598.   DOI   ScienceOn
14 Lo, C.; Hung, C.; Yuan, C.; Wu, J. Solar Energy Mater. Solar Cells. 2007, 91, 1765.   DOI   ScienceOn
15 Beranek, R.; Kisch, H. Electrochem. Commun. 2007, 9, 761.   DOI   ScienceOn
16 Colmenares, J.; Aramendia, M.; Marinas, A.; Marinas, J.; Urbano, F. Appl. Catal. A-Gen. 2006, 306, 120.   DOI   ScienceOn
17 Jing, L.; Sun, X.; Xin, B.; Wang, B.; Cai, W.; Fu, H. J. Solid State Chem. 2004, 177, 3375.   DOI   ScienceOn
18 Sharma, P.; Kumar, P.; Deva, D.; Shrivastav, R.; Dass, S.; Satsangi, V. R. Int. J. Hydrogen Energy 2010, 35, 10883.   DOI   ScienceOn
19 Jia, F.; Yao, Z.; Jiang, Z.; Li, C. Catal. Commun. 2011, 12, 497.   DOI   ScienceOn
20 Umebayashi, T.; Yamaki, T.; Itoh, H.; Asai, K. J. Phys. Chem. Solids 2002, 63, 1909.   DOI   ScienceOn