Preparation and photocatalytic degradation of CNT/TiO2 composites using MWCNT and various titanium alkoxide precursors

MWCNT와 여러가지 티탄알콕사이드 전구체를 사용하여 CNT/TiO2 복합체의 제조와 광촉매분해

  • Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Zhang, Feng-Jun (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
  • 진명량 (한서대학교, 신소재공학과) ;
  • 장봉군 (한서대학교, 신소재공학과) ;
  • 오원춘 (한서대학교, 신소재공학과)
  • Received : 2008.09.10
  • Accepted : 2008.10.27
  • Published : 2008.12.25

Abstract

$CNT/TiO_2$ composites were prepared by using multiwall carbon nanotubes (MWCNT) and various titanium alkoxide precursors. The composites were comprehensively characterized by scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX) and UV-vis absorption spectroscopy. The photoactivity of the prepared materials under UV irradiation, was tested using the conversion of MB from model aqueous solution. Finally, according to the results of methylene blue (MB) removal experiment, we could see that sample CTOS have better MB removal effect than samples CTIP and CTPP.

Keywords

CNT;TNB;FE-SEM;XRD;UV;photocatalytic decomposition

References

  1. T. Wakanabe, A. Kitamura, E. Kojima, C. Nakayama, K. Hashimoto, A. Fujishima, in: D. E. Olis, H. Al- Ekabi(Eds.), Elsevier, 747 (1993)
  2. M. A. Fox and M. T. Dulay, Chem. Rev. 93, 341-357(1993) https://doi.org/10.1021/cr00017a016
  3. T. Ibusuki and K. Takeuchi, J. Mol. Catal. 88, 93-102(1994) https://doi.org/10.1016/0304-5102(93)E0247-E
  4. M. Inagaki, Y. Hirose, T. Matsunaga, T. Tsumura and M. Toyoda, Carbon, 41, 2619-2624(2003) https://doi.org/10.1016/S0008-6223(03)00340-3
  5. M. L. Chen, J. S. Bae and W. C. Oh, Analytical Science & Technology, 19, 460-467(2006)
  6. M. L. Chen, C. S. Lim and W. C. Oh, J. Ceramic Processing Research, 8, 119-124(2007)
  7. T. Saito, K. Matsushige and K. Tanaka, Physica B, 323, 280-283(2002) https://doi.org/10.1016/S0921-4526(02)00999-7
  8. M. L. Chen, J. S. Bae and W. C. Oh, Carbon Science, 7, 259-265(2006)
  9. M. R. Hoffmann, S. T. Martin, W. Choi and D. W. Bahnemann, Chem. Rev. 95, 69-96(1995) https://doi.org/10.1021/cr00033a004
  10. Y. L. Chai, Y. S. Chang, G. J. Chen and Y. J. Hsiao, Mater. Res. Bull., 43, 1066-1073(2008) https://doi.org/10.1016/j.materresbull.2007.06.002
  11. M. Z. Zheng, X. R. Xing, J. X. Deng, L. Li, J. Zhao, L. J. Qiao and C. Y. Fang, J. Alloys Compd., 456, 353-357(2008) https://doi.org/10.1016/j.jallcom.2007.02.039
  12. W. C. Oh and M. L. Chen, Bull. Korean Chem. Soc., 29, 159-164(2008) https://doi.org/10.5012/bkcs.2008.29.1.159
  13. T. Seeger, Ph. Redlich, N. Grobert, M. Terrones, D.R.M.Walton and H.W. Kroto, et al., Chem. Phys. Lett., 339, 41-46(2001) https://doi.org/10.1016/S0009-2614(01)00256-1
  14. P. Vincent, A. Brioude, C. Journet, S. Rabaste, S.T. Purcell and J. Le Brusq, et al., J. Non-Cryst. Solids, 311, 130-137 (2002) https://doi.org/10.1016/S0022-3093(02)01371-6
  15. M. S. Dresselhaus, G. Dresselhaus and P. Avouris (Eds.), Topics in Applied Physics, Springer-Verlag, Berlin-Heidelberg, 80, 147(2001)
  16. K. Hernadi, E. Ljubbovic, J.W. Seo and L. Forro, Acta Mat., 51, 1447- 1452(2003) https://doi.org/10.1016/S1359-6454(02)00539-6
  17. M. L. Chen and W. C. Oh, Analytical Science & Technology, 21, 229-236(2008)
  18. B. Ohtani and S. I. Nishimoto, J. Phys. Chem. 97, 920-926(1993) https://doi.org/10.1021/j100106a018
  19. M. L. Chen and W. C. Oh, Carbon Science, 8, 108-114(2007)
  20. Z. H. Zhang, Y. Yuan, L. H. Liang, Y. J. Fang, Y. X. Cheng and H. C. Ding, et al., Ultrason. Sonochem., 15, 370-375(2008) https://doi.org/10.1016/j.ultsonch.2007.09.017
  21. M. L. Chen, J. S. Bae, Y. S. Ko and W. C. Oh, Analytical Science & Technology, 19, 376-382(2006)