Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Characterization of TiO2/CuS Nanocomposite Fibers as a Visible Light-Driven Photocatalyst

  • An, HyeLan (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Kang, Leeseung (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Ahn, Hyo-Jin (Department of Materials Science and Engineering, Seoul National University of Science and Technology) ;
  • Choa, Yong-Ho (Department of Fine Chemical Engineering, Hanyang University) ;
  • Lee, Chan Gi (Advanced Materials & Processing Center, Institute for Advanced Engineering)
  • Received : 2018.02.02
  • Accepted : 2018.03.20
  • Published : 2018.05.31
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Abstract

$TiO_2/CuS$ nanocomposites were fabricated by precipitation of nanosized CuS via sonochemical method on electrospun $TiO_2$ nanofibers, and their structure, chemical bonding states, optical properties, and photocatalytic activity were investigated. In the $TiO_2/CuS$ nanocomposite, the position of the conduction band for CuS was at a more negative than that of TiO; meanwhile, the position of the valence band for CuS was more positive than those for TiO, indicating a heterojunction structure belonging to type-II band alignment. Photocatalytic activity, measured by decomposition of methylene blue under visible-light irradiation (${\lambda}$ > 400 nm) for the $TiO_2/CuS$ nanocomposite, showed a value of 85.94% at 653 nm, which represented an improvement of 52% compared to that for single $TiO_2$ nanofiber (44.97% at 653 nm). Consequently, the photocatalyst with $TiO_2/CuS$ nanocomposite had excellent photocatalytic activity for methylene blue under visible-light irradiation, which could be explained by the formation of a heterojunction structure and improvement of the surface reaction by increase in surface area.

Keywords

References

  1. A. Ali and W. C. Oh, "Photocatalytic Performance of $CoS_2$-Graphene-$TiO_2$ Ternary Composites for Reactive Black B (RBB) Degradation," J. Korean Cream. Soc., 54 [4] 308-13 (2017). https://doi.org/10.4191/kcers.2017.54.4.09
  2. S. Kang, R. C. Pawar, T. J. Park, J. G. Kim, S. H. Ahn, and C. S. Lee, "Minimization of Recombination Losses in 3D Nanostructured $TiO_2$ Coated with Few Layered g-$C_3N_4$ for Extended Photo-response," J. Korean Cream. Soc., 53 [4] 393-99 (2016). https://doi.org/10.4191/kcers.2016.53.4.393
  3. I. C. Yeo and I. C. Kang, "Preparation of $WO_3-TiO_2$ Photocatalyst and Evaluation of Its Photo-Activity in the Visible Light Range," J. Kor. Powd. Met. Inst., 20 [6] 474-78 (2013). https://doi.org/10.4150/KPMI.2013.20.6.474
  4. Y. J. Kim, B. Gao, S. Y. Han, M. H. Jung, A. K. Chakraborty, T. Ko, C. Lee, and W. I. Lee, "Heterojunction of $FeTiO_3$ Nanodisc and $TiO_2$ Nanoparticle for a Novel Visible Light Photocatalyst," J. Phys. Chem. C, 113 [44] 19179-84 (2009). https://doi.org/10.1021/jp908874k
  5. M. Saranya, C. Santhosh, R. Ramachandran, P. Kollub, P. Saravanan, M. Vinoba, S. K. Jeong, and A. N. Grace, "Hydrothermal Growth of CuS Nanostructures and Its Photocatalytic Properties," Powder Technol., 252 25-32 (2014). https://doi.org/10.1016/j.powtec.2013.10.031
  6. N. Horzum, R. Munoz-Espi, G. Glasser, M. M. Demir, K. Landfester, and D. Crespy, "Hierarchically Structured Metal Oxide/Silica Nanofibers by Colloid Electrospinning," ACS Appl. Mater. Interfaces, 4 [11] 6338-45 (2012). https://doi.org/10.1021/am301969w
  7. A. E. Deniz, A. Celebioglu, F. Kayaci, and T. Uyar, "Electrospun Polymeric Nanofibrous Composites Containing $TiO_2$ Short Nanofibers," Mater. Chem. Phys., 129 [3] 701-4 (2011). https://doi.org/10.1016/j.matchemphys.2011.06.018
  8. M. A. Kanjwal, N. A. M. Barakat, F. A. Sheikh, S. J. Park, and H. Y. Kim, "Photocatalytic Activity of ZnO-$TiO_2$ Hierarchical Nanostructure Prepared by Combined Electrospinning and Hydrothermal Techniques," Macromol. Res., 18 [3] 233-40 (2010). https://doi.org/10.1007/s13233-010-0303-9
  9. H. Wang, J. R. Zhang, X. N. Zhao, S. Xu, and J. J. Zhu, "Preparation of Copper Monosulfide and Nickel Monosulfide Nanoparticles by Sonochemical Method," Mater. Lett., 55 [4] 253-58 (2002). https://doi.org/10.1016/S0167-577X(01)00656-5
  10. G. Hu, X. Meng, X. Feng, Y. Ding, S. Zhang, and M. Yang, "Anatase $TiO_2$ Nanoparticles/Carbon Nanotubes Nanofibers: Preparation, Characterization and Photocatalytic Properties," J. Mater. Sci., 42 [17] 7162-70 (2007). https://doi.org/10.1007/s10853-007-1609-7
  11. S. M. Kim, T. K. Yun, and D. I. Hong, "Effect of Rutile Structure on $TiO_2$ Photocatalytic Activity," J. Korean Chem. Soc., 49 [6] 567-74 (2005). https://doi.org/10.5012/jkcs.2005.49.6.567
  12. L. M. Lacroix, F. Delpech, C. Nayral, S. Lachaize, and B. Chaudret, "New Generation of Magnetic and Luminescent Nanoparticles for in Vivo Real-Time Imaging," Interface Focus, 3 [3] 20120103 (2013). https://doi.org/10.1098/rsfs.2012.0103
  13. N. Qin, Y. Liu, W. Wu, L. Shen, X. Chen, Z. Li, and L. Wu, "One-Dimensional CdS/$TiO_2$ Nanofiber Composites as Efficient Visible-Light-Driven Photocatalysts for Selective Organic Transformation: Synthesis, Characterization, and Performance," Langmuir, 31 [3] 1203-9 (2015). https://doi.org/10.1021/la503731y
  14. L. Zhu and W. C. Oh, "Novel $Bi_2S_3$/$TiO_2$ Heterogeneous Catalyst: Photocatalytic Mechanism for Decolorization of Texbrite Dye and Evaluation of Oxygen Species," J. Korean Cream. Soc., 53 [1] 56-62 (2016). https://doi.org/10.4191/kcers.2016.53.1.56

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