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Proceeding Paper

Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation †

by
Kamal Prasad Sapkota
1,2,
Md. Akherul Islam
1,
Md. Abu Hanif
1,
Jeasmin Akter
1 and
Jae Ryang Hahn
1,3,*
1
Department of Chemistry and Department of Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Korea
2
Department of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu 44618, Nepal
3
Textile Engineering, Chemistry and Science, North Carolina State University, 2401 Research Drive, Raleigh, NC 27695-8301, USA
*
Author to whom correspondence should be addressed.
†
Presented at the 2nd International Online-Conference on Nanomaterials, 15–30 November 2020; Available online: https://iocn2020.sciforum.net/.
Mater. Proc. 2021, 4(1), 18; https://doi.org/10.3390/IOCN2020-07790
Published: 10 November 2020
(This article belongs to the Proceedings of The 2nd International Online-Conference on Nanomaterials)
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Abstract

We elaborate the synthesis and remarkable photocatalytic efficiency of a series of heterojunction nanocomposites with a cauliflower-like architecture composed of copper oxide (CuO) and single-walled carbon nanotubes (SWCNTs). The photocatalysts with such a peculiar design were constructed via facile recrystallization followed by calcination and were symbolized as CuO-SWCNT-1, CuO-SWCNT-2, and CuO-SWCNT-3, representing the components and calcination time in hours. The photocatalytic efficiency of the synthesized nanocomposite samples were investigated by evaluating the decomposition of methylene blue (MB) solution under natural sunlight exposure. All of the as-synthesized photocatalysts were substantially effectual for the photo-deterioration of MB solution. Moreover, CuO-SWCNT-3 revealed the top photocatalytic capability with 96% decomposition of MB solution in 2 h while being exposed to visible light. Pristine CuO nanocrystals and the SWCNTs were employed as controls, whereas the photocatalytic performance of the hetero-composites was significantly better than that of pure CuO as well as SWCNTs. The recyclability of the photocatalysts was also explored, and the results asserted that the samples could be reused for five cycles without being altered notably in photocatalytic performance or morphology.
Keywords: CuO-SWCNT; nano-cauliflower; methylene blue; recrystallization; photo-deterioration; nanocomposites; photocatalysis CuO-SWCNT; nano-cauliflower; methylene blue; recrystallization; photo-deterioration; nanocomposites; photocatalysis

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MDPI and ACS Style

Sapkota, K.P.; Islam, M.A.; Hanif, M.A.; Akter, J.; Hahn, J.R. Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation. Mater. Proc. 2021, 4, 18. https://doi.org/10.3390/IOCN2020-07790

AMA Style

Sapkota KP, Islam MA, Hanif MA, Akter J, Hahn JR. Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation. Materials Proceedings. 2021; 4(1):18. https://doi.org/10.3390/IOCN2020-07790

Chicago/Turabian Style

Sapkota, Kamal Prasad, Md. Akherul Islam, Md. Abu Hanif, Jeasmin Akter, and Jae Ryang Hahn. 2021. "Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation" Materials Proceedings 4, no. 1: 18. https://doi.org/10.3390/IOCN2020-07790

APA Style

Sapkota, K. P., Islam, M. A., Hanif, M. A., Akter, J., & Hahn, J. R. (2021). Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation. Materials Proceedings, 4(1), 18. https://doi.org/10.3390/IOCN2020-07790

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