Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Preparation of Visible-light Active TiO2 Nanotubes by Solution Method

액상법에 의한 가시광감응성 티타니아 나노튜브의 제조

  • 이현미 (한국화학연구원 에너지소재 연구센터) ;
  • 소원욱 (한국화학연구원 에너지소재 연구센터) ;
  • 백진욱 (한국화학연구원 에너지소재 연구센터) ;
  • 공기정 (한국화학연구원 에너지소재 연구센터) ;
  • 문상진 (한국화학연구원 에너지소재 연구센터)
  • Received : 2011.04.07
  • Accepted : 2011.04.18
  • Published : 2012.02.01
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Abstract

N-doped $TiO_2$nanotubes have been newly prepared by two stage sol-gel and strong-alkali hydrothermal process using $TiCl_4$ and hydrazine/ammonia aqueous solution as raw materials. These nanotubes revealed a well developed anatase crystalline phase and perfect nanotube morphology with the diameter around 10nm and the wall thickness below 3 nm. Also, they showed a superior visible light activity and yellowish color due to the light absorption redshifted by ~35 nm and ~25 nm compared to undoped $TiO_2$ nanotubes and anatase nanoparticles, respectively.

$TiCl_4$와 히드라진/암모니아수를 사용하여 졸겔 및 강알칼리 수열합성법의 신규 2단 합성법을 통해 N도핑된 $TiO_2$ 나노튜브를 제조하였다. 제조된 나노튜브는 튜브형상의 손상이 없이 10 nm 전후의 직경과 3 nm 이하의 벽두께를 가지며, 잘발달된 아나타제 결정상을 나타내었다. 또한 N이 도핑되어 일반 도핑되지 않은 $TiO_2$ 나노튜브와 아나타제상입자에 비해 각각 ~35 nm, ~25 nm 정도 적색편이 된 우수한 가시광 흡수능과 노란색 색상을 보여 주었다.

Keywords

Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)

References

  1. Liang, Y. Q., Cui, Z. D., Zhu, S. L., Liu, Y. and Yang, X. J., "Silver Nanoparticles Supported on $TiO_2$ Nanotubes as Active Catalystsfor Ethanol Oxidation," J. Catal., 278, 276-287(2011). https://doi.org/10.1016/j.jcat.2010.12.011
  2. Nagaveni, K., Hegde, M. S. and Madras, G., "Structure and Photocatalytic Activity of $Ti_{1-x}M_xO_{2+{\delta}}$(M=W, V, Ce, Zr, Fe, and Cu) Synthesized by Solution Combustion Method," J. Phys. Chem. B, 108, 20204-20212(2004). https://doi.org/10.1021/jp047917v
  3. Ly, C., Zhou, Y., Li, H., Dang, M., Guo, C., Ou, Y. and Xiao, B., "Synthesis and Characterization of $Gd^{3+}$-Doped Mesoporous $TiO_2$ Materials," Applied Surface Sci., 257, 5104-5108(2011). https://doi.org/10.1016/j.apsusc.2011.01.029
  4. Tachikawa, T., Tojo, S., Kawai, K., Endo, M., Fujitsuka, M., Ohno, T., Nishijima, K., Miyamoto, Z. and Majima, T., "Photocatalyticoxidation Reactivity of Holes in the Sulfur- and Carbondoped $TiO_2$ Powders Studied by Time-resolved Diffuse Reflectance Spectroscopy," J. Phys. Chem. B, 108, 19299-19306(2004). https://doi.org/10.1021/jp0470593
  5. Lee, S., Cho, I. S., Lee, D. K., Kim, D. W., Noh, T. H., Kwak, C. H., Park, S., Hong, K. S., Lee, J. K. and Jung, H. S., "Influence of Nitrogen Chemical States on Photocatalytic Activities Ofnitrogen-Doped $TiO_2$ Nanoparticles Under Visible Light," J. Photochem. and Photobio. A: Chemistry, 213, 129-135(2010). https://doi.org/10.1016/j.jphotochem.2010.05.011
  6. Patzke, G. R., Krumeich, F. and Nesper, R., "Oxidicnanotubes and Nanorods-Anisotropic Modulesfor a Future Nanotechnol-ogy," Angew. Chem. Int. Ed., 41, 2446-2461(2002). https://doi.org/10.1002/1521-3773(20020715)41:14<2446::AID-ANIE2446>3.0.CO;2-K
  7. Ghicov, A., Macak, J. M., Tsuchiya, H., Kunze, J., Haeublein, V., Frey, L. and Schmuki, P., "Ion Implantation and Annealing for An Efficient N-Doping of $TiO_2$ Nanotubes," Nano Lett., 6, 1080-1082(2006). https://doi.org/10.1021/nl0600979
  8. Su, Y., Zhang, X., Han, S., Chen, X. and Lei, L., "F-B-codoping of Anodized $TiO_2$ Nanotubes Usingchemical Vapor Deposition," Electrochem. Commun., 9, 2291-2298(2007). https://doi.org/10.1016/j.elecom.2007.06.038
  9. Japan Patent, "Preparation of Titania Nanotube," P2004-35362A (2004).
  10. Huang, L., Sun, C. and Liu, Y., "N-doped $TiO_2$ Nanotubes with Visible Light Photo-activity for Degradation of Methyl Orange in Water," J. Ceram. Soc. Japan, 115, 28-31(2007). https://doi.org/10.2109/jcersj.115.28
  11. Kasuga, T., Hiramatsu, M., Hoson, A., Sekino, T. and Niihara, K., "Formation of Titanium Oxide Nanotube," Langmuir, 14, 3160-3163(1998). https://doi.org/10.1021/la9713816
  12. Chang, H., Kong, K., Choi, Y. S., In, E., Choi, Y., Baeg, J. O. and Moon, S. J., "Electronic Structures of $InTaO_4$, a Promising Photocatalyst," Chemical Physics Letters, 398, 449-452(2004). https://doi.org/10.1016/j.cplett.2004.09.113
  13. Asahi, R., Morikawa, T., Ohwaki, T., Aoki, K. and Taga, Y., "Visiblelight Photocatalysis in Nitrogen-doped Titanium Oxides," Science, 293, 269-271(2001). https://doi.org/10.1126/science.1061051
  14. Saha, N. C. and Tompkins, H. G., "Titanium Nitride Oxidation Chemistry: An x-ray Photoelectronspectroscopy Study," J. Appl. Phys., 72, 3072-3079(1992). https://doi.org/10.1063/1.351465