DOI QR코드

DOI QR Code

Facile Preparation of Ag2S-CNT Nanocomposites with Enhanced Photo-catalytic Activity

  • Meng, Ze-Da (Jiangsu Key Laboratory of Environmental Functional Materials, College of Chemistry and Bioengineering, Suzhou University of Science and Technology) ;
  • Sarkar, Sourav (Department of Advanced Materials Science & Engineering, Hanseo University) ;
  • Zhu, Lei (Department of Advanced Materials Science & Engineering, Hanseo University) ;
  • Ullah, Kefayat (Department of Advanced Materials Science & Engineering, Hanseo University) ;
  • Ye, Shu (Department of Advanced Materials Science & Engineering, Hanseo University) ;
  • Oh, Won-Chun (Department of Advanced Materials Science & Engineering, Hanseo University)
  • Received : 2013.09.02
  • Accepted : 2014.01.07
  • Published : 2014.01.31

Abstract

Here we report improved photo-catalytic effect of $Ag_2S$ under visible light using carbon nano-tubes (CNT) modified with $Ag_2S$ nanoparticles. The optical properties, structural properties and compositional analysis, as well as the photo-electrochemical properties of the prepared composites were investigated. It was found that the photocurrent density, and the photo-catalytic effect, was increased by modification of CNT in this way. Compared with the separate effects of $Ag_2S$ and CNT nanoparticles, the photocatalytic effect of CNT-modified-with-$Ag_2S$ composites, increased significantly due to a synergistic effect between the CNT and the $Ag_2S$ nanoparticles.

Keywords

References

  1. O. K. Dalrymple, E. Stefanakos, M. A. Trotz, and D. Y. Goswami, "A Review of the Mechanisms and Modeling of Photocatalytic Disinfection," Appl. Catal. B, 98 [1-2] 27-38 (2010). https://doi.org/10.1016/j.apcatb.2010.05.001
  2. P. Xu, T. Xu, J. Lu, S. M. Gao, N. S. Hosmane, B. B. Huang, Y. Dai, and Y. B. Wang, "Visiblelight-driven Photocatalytic S- and C-codoped Meso/Nanoporous $TiO_2$," Energy Environ. Sci., 3 [8] 1128-34 (2010). https://doi.org/10.1039/c001940m
  3. S. Bagwasi, B. Z. Tian, J. L. Zhang, and M. Nasir, "Synthesis, Characterization and Application of Bismuth and Boron Co-doped $TiO_2$: A Visible Light Active Photocatalyst," Chem. Eng. J., 217 108-18 (2013). https://doi.org/10.1016/j.cej.2012.11.080
  4. L. Zhu, Z. D. Meng, and W. C. Oh, "Facile Synthesis, Characterization and Photocatalytic Activity of MWCNTsupported Metal Sulfide Composites under Visible Light Irradiation," J. Kor. Ceram. Soc., 49 [2] 155-60 (2012). https://doi.org/10.4191/kcers.2012.49.2.155
  5. D. Wang, C. Hao, W. Zheng, Q. Peng, T. Wang, Z. Liao, D. Yu, and Y. Li, "Ultralong Single-crystalline $Ag_2S$ Nanowires: Promising Candidates for Photoswitches and Room-temperature Oxygen Sensors," Adv. Mater., 20 [13] 2628-32 (2008). https://doi.org/10.1002/adma.200800138
  6. E. S. Lee, K. M. Lee, S. I. Yoon, Y. G. Ko, and D. H. Shin, "Influence of CNT Incorporation on the Photovoltaic Behavior of $TiO_2$ Films Formed by High-voltage Electrophoretic Deposition," Curr. Appl. Phys., 13 [2] 26-29 (2013). https://doi.org/10.1016/j.cap.2012.06.015
  7. H. J. Choi, J. E. Shin, G. W. Lee, N. G. Park, K. Kim, and S. C. Hong, "Effect of Surface Modification of Multi-walled Carbon Nanotubes on the Fabrication and Performance of Carbon Nanotube based Counter Electrodes for Dye-sensitized Solar Cells," Curr. Appl. Phys., 10 [2] S165-67 (2010). https://doi.org/10.1016/j.cap.2009.11.062
  8. G. Jiang, L. Wang, C. Chen, X. Dong, T. Chen, and H. Yu, "Attachment of Branched Molecules on Multiwalled Carbon Nano- tubes," Mater Lett., 59 [16] 2085-89 (2005). https://doi.org/10.1016/j.matlet.2005.01.085
  9. H. Dong and K. Lu, "Attaching Titania Nanoparticles onto Shortened Carbon Nanotubes by Electrostatic Attraction," Int. J. Appl. Ceram. Technol., 6 [2] 216-22 (2009). https://doi.org/10.1111/j.1744-7402.2008.02270.x
  10. X. W. Zhang, M. H. Zhou, and L. C. Lei, "Preparation of Photocatalytic $TiO_2$ Coating of Nanosized Particles Supported on Activated Carbon by AP-MOCVD," Carbon, 43 [8] 1700-08 (2005). https://doi.org/10.1016/j.carbon.2005.02.013
  11. Z. D. Meng, T. Ghosh, L. Zhu, J. G. Choi, C. Y. Park, and W. C. Oh, "Synthesis of Fullerene Modified with $Ag_2S$ with High Photocatalytic Activity under Visible Light," J. Mater. Chem., 22 [31] 16127-35 (2012). https://doi.org/10.1039/c2jm32344c
  12. W. Han and A. Zettl, "Coating Single-walled Carbon Nanotubes with Tin Oxide," Nano Lett., 3 [5] 681-83 (2003). https://doi.org/10.1021/nl034142d
  13. Z. D. Meng, M. M. Peng, L. Zhu, and W. C. Oh, "Fullerene Modification CdS/$TiO_2$ to Enhancement Surface Area and Modification of Photocatalytic Activity under Visible Light," Appl. Catal. B, 113-114 141-49 (2012). https://doi.org/10.1016/j.apcatb.2011.11.031
  14. Y. Du, B. Xu, T. Fu, M. Cai, F. Li, Y. Zhang, and Q. Wang, "Near-infrared Photoluminescent $Ag_2S$ Quantum Dots from a Single Source Precursor," J. Am. Chem. Soc., 132 [5] 1470 (2010). https://doi.org/10.1021/ja909490r
  15. K. Nagasuna, T. Akita, M. Fujishima, and H. Tada, "Photodeposition of $Ag_2S$ Quantum Dots and Application to Photoelectrochemical Cells for Hydrogen Production under Simulated Sunlight," Langmuir, 27 [11] 7294-300 (2011). https://doi.org/10.1021/la200587s
  16. K. Hernadi, E. Couteau, J. W. Seo, and L. Forro, "$Al(OH)_3$/ multiwalled Carbon Nanotube Composite: Homogeneous Coverage of $Al(OH)_3$ on Carbon Nanotube Surfaces," Langmuir, 19 [17] 7026-29 (2003). https://doi.org/10.1021/la034432+
  17. M. D. Donohue and G. L. Aranovich, "A New Classification of Isotherms for Gibbs Adsorption of Gases on Solids," Fluid Phase Equilib., 158-160 557-63 (1999). https://doi.org/10.1016/S0378-3812(99)00074-6
  18. Z. D. Meng, L. Zhu, J. G. Choi, C. Y. Park, and W. C. Oh, "Preparation, Characterization and Photocatalytic Behavior of $WO_3$-fullerene/$TiO_2$ Catalysts under Visible Light," Nanoscale Res. Lett., 6 [1] 459 (2011). https://doi.org/10.1186/1556-276X-6-459
  19. Y. Xie, S. H. Heo, Y. N. Kim, S. H. Yoo, and S. O. Cho, "Synthesis and Visible-light-induced Catalytic Activity of $Ag_2S$-coupled $TiO_2$ Nanoparticles and Nanowires, " Nanotechnology, 21 [1] 015703 (2010). https://doi.org/10.1088/0957-4484/21/1/015703
  20. P. Peng, B. Sadtler, A. P. Alivisatos, and R. J. Saykally, "Exciton Dynamics in CdS-$Ag_2S$ Nanorods with Tunable Composition Probed by Ultrafast Transient Absorption Spectroscopy," J. Phys. Chem. C, 114 [13] 5879-85 (2010). https://doi.org/10.1021/jp9116722
  21. D. Baowan, W. Triampo, and D. Triampo, "Encapsulation of $TiO_2$ Nanoparticles into Single-walled Carbon Nanotubes," New J. Phys., 11 093011 (2009). https://doi.org/10.1088/1367-2630/11/9/093011

Cited by

  1. A Study on the Desulfurization Efficiency of Limestone Sludge with Various Admixtures vol.52, pp.6, 2015, https://doi.org/10.4191/kcers.2015.52.6.479