Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
권호 표지

Evaluation on the Photodegradation Rate of NOx Using High Efficiency Visible-Light Responsive Photocatalysts

고효율 가시광 반응형 광촉매를 이용한 NOx의 광저감율 평가

  • Cha, Ji An (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • An, Sang Hun (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Cho, Eun hee (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Kim, Tae Oh (Department of Environmental Engineering, Kumoh National Institute of Technology)
  • 차지안 (금오공과대학교 환경공학과) ;
  • 안상훈 (금오공과대학교 환경공학과) ;
  • 조은희 (금오공과대학교 환경공학과) ;
  • 김태오 (금오공과대학교 환경공학과)
  • Received : 2010.11.17
  • Accepted : 2010.12.07
  • Published : 2010.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

Titania is widely used as an effective photocatalyst for the photodegradation of environmental pollutants in air. In this study, novel N-doped $ZrO_2/TiO_2$ photocatalysts were synthesized via sol-gel method and characterized by UV-Vis spectrophotometer, transmission electron microscope, and X-ray diffractometer. N-doped $ZrO_2/TiO_2$ photocatalysts were nano-sized with an average particle size of about 20 nm. The XRD pattern of N-doped $ZrO_2/TiO_2$ photocatalysts showed both anatase and rutile phases. The photocatalytic activity of N-doped $ZrO_2/TiO_2$ photocatalysts was evaluated by degradation of NO under UV and visible light irradiation at various parameters such as amount of photocatalyst, concentration of NO, and intensity of light. The photocatalytic activity of N-doped $ZrO_2/TiO_2$ photocatalysts was effective for the enhancement of the degradation of NO and higher than that of $TiO_2$ photocatlysts under UV and visible light irradiation.

Keywords

References

  1. J. C. Sjogren, R. A. Sierka, (1994) "Inactivation of Phage MS2 by Iron-Aided Titanium Dioxide Photocatalysis: Appl. Environ. Microbiol. (60), 344-348.
  2. R. Cai, K. Hashimoto, K. Itoh, Y. Kubota, A. Fujishima, (1991) Bull. Chem. Soc. Jpn. (64), 1268-1275.
  3. M. Duran, M. Dezotti, J. Rodriguez, (1991) "Biomas photochemistry XV: Photobleaching and biobleaching of Kraft effluent" J. Photochem. Photobiol. A: Chem. (62), 269-279.
  4. A. Fujishima, K. Hashimoto, and T. Watanabe, (1999) "$TiO_2$ Phtocatalysis Fundamentals and Applications", BKC, ToKyo.
  5. Z. Huang, P. Maness, D. M. Blake, E. J. Wolfrum, S. L. Smolinski, W. A. Jacoby, (2000) "Bacteri-cidal mode of titanium dioxide photocatalysis" J. Photochem. Photobiol. A: Chemistry. vol 130, Issues 2-3, 163-170.
  6. D. Weichgrebe, A. Vogelpohl, D. Bockelmann, and D. Bauermann, (1993) Proc of 1st Inter. Conf. on $TiO_2$ Photocatalytic Purification and Treatment of Water and Air, Elsevier, Amsterdam, p579.
  7. Photocatalysis and Environment Trends and Application, ed. M. Shiavello, (1988) Kluwer Academic pub. Dortrecht.
  8. A. Fuerte, M. D. Hernandez-Alonso, A. J. Maria, A. Martinez-Arias, M. Fernandez-Garcia, J. C. Conesa, J. Soria, and G. Munuera. (2002) "Nanosized T-W Mixed Oxides: Effect of doping level in the Photocatalytic degradation of toluene using sunlight-type excitation." J. Catalysis. (212), 1-9.
  9. Z. Huang, P. Maness, D. M. Blake, E. J. Wolfrum, S. L. Smolinski, W. A. Jacoby, (2000) "Bactericidal mode of titanium dioxide photo catalysis" J. Photochem. Photobiol. A: Chemistry. vol 130, Issues 2-3, 163-170. https://doi.org/10.1016/S1010-6030(99)00205-1
  10. J. C. Ireland, P. Klostermann, E. W. Rice, R. M. Clark, (1993) "Inactivation of Escherichia coli by Titanium Dioxide Photocatalytic Oxidation" Appl. Environ. Microbiol. (59) 1168-1172.
  11. A. Mills, A. Belghazi, R. H. Davies, D. Worsley, S. Morris, (1993) "A kinetic study of the bleaching of rhodamine 6G photosensitized by titanium dioxide" J. Photochem. Photobiol. vol 79, Issues 1-2, p131-139.
  12. X. Fu, L.A. Clark, Q. Yang, M.A. Anderson, (1996) Environ. Sci. chnol. 30 647-653. https://doi.org/10.1021/es950391v
  13. C. Wu, X. Zhao, Y. Ren, Y. Yue,W. Hua, Y. Cao, Y. Tang, Z. Gao, J. Mol. (2005) Catal. A. 229233-239.
  14. A. Lozano, J. Garcia, X. Domenech, J. Casado, (1992) J. Photochem. Photobiol. A.:Chem., 69, 237. https://doi.org/10.1016/1010-6030(92)85283-Z
  15. X. Fu, L.A. Clark, Q. Yang, M.A. Anderson, "Enhanced Photocatalytic Performance of Titania-Based Binary Metal Oxides: $TiO_2/SiO_2$ and $TiO_2/ZrO_2$," Environ. Sci. Technol. Vol. 30, pp. 647-653 (1996). https://doi.org/10.1021/es950391v
  16. X. Wang, J.C. Yu, Y. Chen, L. Wu, X. Fu, "$ZrO_2$- Modified Mesoporous Nanocrystalline $TiO_2$-xNx as Efficient Visible Light Photocatalysts," Environ. Sci. Technol. Vol. 40, pp. 2369-2374 (2006). https://doi.org/10.1021/es052000a
  17. G. Mills, M.R. Hoffmann, (1993) Environ. Sci. Technol., 27, 1681. https://doi.org/10.1021/es00045a027
  18. J. Cunningham, P.J. Sedlak, (1994) J. Photochem. Photobiol. A.:Chem., 77, 255. https://doi.org/10.1016/1010-6030(94)80051-0
  19. M. A. Aguado, M.A. Anderson, C. G. Hill, (1994) J. Mol. Catal., 89, 165. https://doi.org/10.1016/0304-5102(93)E0282-L
  20. N. Serpone, and E. Pelizzetti., Eds., (1989) "Photocatalysis Fundamental and Applications." Wiley, New York.