Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue
We report enhanced catalytic action of a series of copper(II)-oxide-single-walled carbon nanotube (CuO-SWCNT) composite photocatalysts (abbreviated as CuO-SWCNT-0.5, CuO-SWCNT-2, and CuO-SWCNT-5, where 0.5, 2, and 5 represent the calcination time in hours) synthesized via recrystallization followed...
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doaj-82080aac2edf4aafae0d9da15d2aaec52020-11-25T02:28:13ZengMDPI AGCatalysts2073-43442020-03-0110329710.3390/catal10030297catal10030297Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene BlueKamal Prasad Sapkota0Insup Lee1Md. Abu Hanif2Md. Akherul Islam3Jeasmin Akter4Jae Ryang Hahn5Department of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaDepartment of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaDepartment of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaDepartment of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaDepartment of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaDepartment of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, KoreaWe report enhanced catalytic action of a series of copper(II)-oxide-single-walled carbon nanotube (CuO-SWCNT) composite photocatalysts (abbreviated as CuO-SWCNT-0.5, CuO-SWCNT-2, and CuO-SWCNT-5, where 0.5, 2, and 5 represent the calcination time in hours) synthesized via recrystallization followed by calcination. The photocatalytic performance of the fabricated nanocomposites was examined by evaluating the degradation of methylene blue (MB) under irradiation with visible light. All of the as-fabricated nanocomposites were effective photocatalysts for the photodegradation of a MB solution; however, the CuO-SWCNT-5 displayed the best photocatalytic ability among the investigated catalysts, achieving 97.33% degradation of MB in 2 h under visible-light irradiation. The photocatalytic action of the nanocomposites was remarkably higher than that of pristine CuO nanocrystals fabricated using the same route. The recyclability of the photocatalyst was also investigated; the CuO-SWCNT-5 catalyst could be reused for three cycles without substantial degradation of its catalytic performance or morphology.https://www.mdpi.com/2073-4344/10/3/297cuo-swcnt nanocompositesrecrystallizationmethylene bluephotocatalystvisible light photocatalysisdecomposition |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kamal Prasad Sapkota Insup Lee Md. Abu Hanif Md. Akherul Islam Jeasmin Akter Jae Ryang Hahn |
spellingShingle |
Kamal Prasad Sapkota Insup Lee Md. Abu Hanif Md. Akherul Islam Jeasmin Akter Jae Ryang Hahn Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue Catalysts cuo-swcnt nanocomposites recrystallization methylene blue photocatalyst visible light photocatalysis decomposition |
author_facet |
Kamal Prasad Sapkota Insup Lee Md. Abu Hanif Md. Akherul Islam Jeasmin Akter Jae Ryang Hahn |
author_sort |
Kamal Prasad Sapkota |
title |
Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue |
title_short |
Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue |
title_full |
Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue |
title_fullStr |
Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue |
title_full_unstemmed |
Enhanced Visible-Light Photocatalysis of Nanocomposites of Copper Oxide and Single-Walled Carbon Nanotubes for the Degradation of Methylene Blue |
title_sort |
enhanced visible-light photocatalysis of nanocomposites of copper oxide and single-walled carbon nanotubes for the degradation of methylene blue |
publisher |
MDPI AG |
series |
Catalysts |
issn |
2073-4344 |
publishDate |
2020-03-01 |
description |
We report enhanced catalytic action of a series of copper(II)-oxide-single-walled carbon nanotube (CuO-SWCNT) composite photocatalysts (abbreviated as CuO-SWCNT-0.5, CuO-SWCNT-2, and CuO-SWCNT-5, where 0.5, 2, and 5 represent the calcination time in hours) synthesized via recrystallization followed by calcination. The photocatalytic performance of the fabricated nanocomposites was examined by evaluating the degradation of methylene blue (MB) under irradiation with visible light. All of the as-fabricated nanocomposites were effective photocatalysts for the photodegradation of a MB solution; however, the CuO-SWCNT-5 displayed the best photocatalytic ability among the investigated catalysts, achieving 97.33% degradation of MB in 2 h under visible-light irradiation. The photocatalytic action of the nanocomposites was remarkably higher than that of pristine CuO nanocrystals fabricated using the same route. The recyclability of the photocatalyst was also investigated; the CuO-SWCNT-5 catalyst could be reused for three cycles without substantial degradation of its catalytic performance or morphology. |
topic |
cuo-swcnt nanocomposites recrystallization methylene blue photocatalyst visible light photocatalysis decomposition |
url |
https://www.mdpi.com/2073-4344/10/3/297 |
work_keys_str_mv |
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