한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제26권6호
  • /
  • Pages.649-656
  • /
  • 2010
  • /
  • 1598-7132(pISSN)
  • /
  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지
DOI QR코드

DOI QR Code

Photocatalytic Degradation Characteristics of Organic Compound by Boron-doped TiO2 Catalysts

  • Nam, Chang-Mo (Division of Health and Science, Yeungnam College of Science and Technology)
  • 투고 : 2010.07.08
  • 심사 : 2010.10.14
  • 발행 : 2010.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Boron-doped $TiO_2$ photocatalysts were synthesized by a modified sol-gel method and their photocatalytic activities were performed and compared with those of pure synthetic and commercial $TiO_2$ catalysts under UV or visible light conditions. Pure $TiO_2$ itself exhibited very negligible photocatalytic performance under visible light conditions in the aspects of toluene decomposition reactions, although significant decomposition potential was observed as expected with UV light conditions. However, boron doping over $TiO_2$ significantly improved photocatalytic activity particularly under visible conditions, where over 95% degradation of toluene was achieved with 1wt% $B-TiO_2$ within 2 hrs. All the decomposition reactions seemed to follow pseudo first-order kinetics. The effects of boron-doping and its characteristics are further discussed through the kinetic studies and comparison of results.

키워드

참고문헌

  1. Akpan, U.G. and B.H. Hameed (2009) Parameters affecting the photocatalytic degradation of dyes using $TiO_2-based$ photocatalysts: A review, J. Hazard. Mater., 170, 520-529. https://doi.org/10.1016/j.jhazmat.2009.05.039
  2. An, S.W., I.Y. Cho, J.H. Park, S.W. Chang, and Y.G. Kim (2006) Degradation of formaldehyde in indoor air quality by $TiO_2$ sol coated wall paper, J. KSEE, 28(8), 872-877. (in Korean with English abstract)
  3. Asahi, R., T. Morikawa, T. Ohwaki, K. Aoki, and Y. Taga (2001) Visible-light photocatalysis in N-doped titanium oxides, Science, 293, 269-271. https://doi.org/10.1126/science.1061051
  4. Bettinelli, M., V. Dallacasa, D. Falcomer, P. Fornasiero, V. Gombac, T. Montini, L. Romano, and A. Speghini (2007) Photocatalytic activity of $TiO_2$ doped with boron and vanadium, J. Hazard. Mater., 146, 529-534. https://doi.org/10.1016/j.jhazmat.2007.04.053
  5. Chen, D., D. Yang, Q. Wang, and Z. Jiang (2006) Effects of boron doping on photocatalytic activity and microstructure of $TiO_2$ nanoparticles, Ind. Eng. Chem. Res., 45, 4110-4116. https://doi.org/10.1021/ie0600902
  6. Cho, D. H., J. H. Kim, G. S. Cha, G. S. Kim, B. H. Kim, and S. H. Ohk (2007) Photocatalytic characteristics of $TiO_2$ thin films deposited by PECVD, J. Ind. Eng. Chem., 13(3), 434-437.
  7. Esplugas, S., J. Ginenez, S. Contreras, and M. Rodriguez (2002) Comparison of different advanced oxidation process for phenol degradation, Ind. Eng. Chem. Res., 42, 2273-2281. https://doi.org/10.1021/ie0209881
  8. Finazzi, E., C.D. Valentin, and G. Pacchioni (2009) Borondoped anatase $TiO_2$: pure and hybrid DFT calculations, J. Phys. Chem. C. 113, 220-228. https://doi.org/10.1021/jp8072238
  9. Fujishima, A., T.N. Rao, and D.A. Tryk (2000) Titanium dioxide photocatalysis, J. Photochem. Photobiol. C: Photochem. Rev., 1, 1-21. https://doi.org/10.1016/S1389-5567(00)00002-2
  10. Khan, R., S.W. Kim, T.J. Kim, and C.M. Nam(2008) Comparative study of the photocatalytic performance of boron-iron co-doped and boron-doped $TiO_2$ nanoparticles, Mater. Chem. and Phys., 112, 167-172. https://doi.org/10.1016/j.matchemphys.2008.05.030
  11. Kim, S.W., R. Khan, T.J. Kim, and W.J. Kim (2008) Synthesis, characterization and application of Zr, S co-doped $TiO_2$ as visible light active photocatalyst, Bull. Korean Chem. Soc., 29(6), 1217-1223. https://doi.org/10.5012/bkcs.2008.29.6.1217
  12. Konstantinou, I.K. and T.A. Albanis (2004) $TiO_2$-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations-A review, Appl. Catal. B: Environ., 49, 1-14. https://doi.org/10.1016/j.apcatb.2003.11.010
  13. Kwon, T., W. Roo, C. Lee, and W. Lee (2005) Preparation of wall paper coated with modified $TiO_2$ and their photocatalytic effects for removal of NO in air, Korean Chem. Eng. Res., 43, 1-8.
  14. Ling, Q., J. Sun, Q. Zhou, H. Ren, and Q. Zhao (2008) Visible-light driven titania/silica photocatalyst co-doped with boron and ferrum, Appl. Surf. Sci., 254, 6731-6735. https://doi.org/10.1016/j.apsusc.2008.04.058
  15. Murakami, Y., B. Kasahara, and Y. Nosaka (2007) Photoelectrochemical properties of the S-doped $TiO_2$ film electrodes : characterization of the doped states by means of the photocurrent measurements, Chem. Lett., 36(2), 330-331. https://doi.org/10.1246/cl.2007.330
  16. Nakamura, R., T. Tanaka, and Y. Nakato (2004) Mechanism for visible light responses in anodic photocurrents at N-doped $TiO_2$ film electrodes, J. Phys. Chem. B, 108, 10617-10620. https://doi.org/10.1021/jp048112q
  17. Ohno, T., T. Mitsui, and M. Matsumura (2003) Photocatalytic activity of S-doped $TiO_2$ photocatalyst under visible light, Chem. Lett., 32(4), 364-365. https://doi.org/10.1246/cl.2003.364
  18. Park, Y.G. (2007) The effect of $TiO_2$ film thickness on the photodegradation of formaldehyde, J. KSEE, 29(11), 1243-1250. (in Korean with English abstract)
  19. Ryu, Y.B., G.D. Lee, S.S. Park, and S.S. Hong (2006) Synthesis of nanosized $TiO_2$ using a hydrothermal method and their photocatalytic activity, J. Ind. Eng. Chem., 12(2), 289-294. https://doi.org/10.1021/ie50123a032
  20. Umebayashi, T., T. Yamaki, S. Tanaka, and K. Asai (2003) Visible light-induced degradation of methylene blue on S-doped $TiO_2$, Chem. Lett., 32(4), 330-331. https://doi.org/10.1246/cl.2003.330
  21. Wu, Y., M. Xing, J. Zhang, and F. Chen (2010) Effective visible light-active boron and carbon modified $TiO_2$ photocatalytsts for degradation of organic pollutant, Appl. Catal. B: Environ., 97, 182-189. https://doi.org/10.1016/j.apcatb.2010.03.038
  22. Xu, J., Y. Ao, M. Chen, and D. Fu (2009) Low-temperature preparation of boron-doped $TiO_2$ by hydrothermal method and its photocatalytic activity, J. Alloys and Compounds, 484, 73-79. https://doi.org/10.1016/j.jallcom.2009.04.156
  23. Yang, X., C. Cao, K. Hohn, L. Erickson, R. Maghirang, D. Hamal, and K. Klabunde (2007) Highly visiblelight active C- and V-doped $TiO_2$ for degradation of acetaldehyde, J. Catal., 252, 296-302. https://doi.org/10.1016/j.jcat.2007.09.014
  24. Yu, J., M. Zhou, B. Cheng, and X. Zhao (2006) Preparation, characterization and photocatalytic activity of in situ N,S-codoped $TiO_2$ powders, J. Molecular Catalysis A: Chem., 246, 176-184. https://doi.org/10.1016/j.molcata.2005.10.034
  25. Zaleska, A., E. Grabowska, J.W. Sobczak, M. Gazda, and J. Hupka (2009) Photocatalytic activity of boronmodified $TiO_2$ under visible light : the effect of boron content, calcinations temperature and $TiO_2$ matrix, Appl. Catal. B: Environ., 89, 469-475. https://doi.org/10.1016/j.apcatb.2009.01.005