Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires
Copper nanowires (CuNWs) with a high aspect ratio of ~2600 have been successfully synthesized by using a facile hydrothermal method. The reductions of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) and methylene blue (MB) to leucomethylene blue (LMB) by using sodium borohydride (NaBH<sub>4</s...
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doaj-1b1f3692d6e44608ae119a93c7f3a2452020-11-25T00:41:50ZengMDPI AGNanomaterials2079-49912019-06-019793610.3390/nano9070936nano9070936Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper NanowiresAina Shasha Hashimi0Muhammad Amirul Nazhif Mohd Nohan1Siew Xian Chin2Sarani Zakaria3Chin Hua Chia4Materials Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaMaterials Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaASASIpintar Program, Pusat GENIUS@Pintar Negara, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaMaterials Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaMaterials Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaCopper nanowires (CuNWs) with a high aspect ratio of ~2600 have been successfully synthesized by using a facile hydrothermal method. The reductions of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) and methylene blue (MB) to leucomethylene blue (LMB) by using sodium borohydride (NaBH<sub>4</sub>) were used as models to test the catalytic activity of CuNWs. We showed that by increasing the CuNWs content, the rate of reduction increased as well. The CuNWs showed an excellent catalytic performance where 99% reduction of 4-NP to 4-AP occurred in just 60 s by using only 0.1 pg of CuNWs after treatment with glacial acetic acid (GAA). The rate constant (k<sub>app</sub>) and activity factor (K) of this study is 18 and ~10<sup>10</sup> fold in comparison to previous study done with no GAA treatment applied, respectively. The CuNWs showed an outstanding catalytic activity for at least ten consecutive reusability tests with a consistent result in 4-NP reduction. In clock reaction of MB, approximately 99% of reduction of MB into LMB was achieved in ~5 s by using 2 μg CuNWs. Moreover, the addition of NaOH can improve the rate and degree of recolorization of LMB to MB.https://www.mdpi.com/2079-4991/9/7/936catalytic activityclock cycleacetic acid treatmentmetal nanowires<i>p</i>-nitrophenolreduction of nitro compounds |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aina Shasha Hashimi Muhammad Amirul Nazhif Mohd Nohan Siew Xian Chin Sarani Zakaria Chin Hua Chia |
spellingShingle |
Aina Shasha Hashimi Muhammad Amirul Nazhif Mohd Nohan Siew Xian Chin Sarani Zakaria Chin Hua Chia Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires Nanomaterials catalytic activity clock cycle acetic acid treatment metal nanowires <i>p</i>-nitrophenol reduction of nitro compounds |
author_facet |
Aina Shasha Hashimi Muhammad Amirul Nazhif Mohd Nohan Siew Xian Chin Sarani Zakaria Chin Hua Chia |
author_sort |
Aina Shasha Hashimi |
title |
Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires |
title_short |
Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires |
title_full |
Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires |
title_fullStr |
Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires |
title_full_unstemmed |
Rapid Catalytic Reduction of 4-Nitrophenol and Clock Reaction of Methylene Blue using Copper Nanowires |
title_sort |
rapid catalytic reduction of 4-nitrophenol and clock reaction of methylene blue using copper nanowires |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2019-06-01 |
description |
Copper nanowires (CuNWs) with a high aspect ratio of ~2600 have been successfully synthesized by using a facile hydrothermal method. The reductions of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) and methylene blue (MB) to leucomethylene blue (LMB) by using sodium borohydride (NaBH<sub>4</sub>) were used as models to test the catalytic activity of CuNWs. We showed that by increasing the CuNWs content, the rate of reduction increased as well. The CuNWs showed an excellent catalytic performance where 99% reduction of 4-NP to 4-AP occurred in just 60 s by using only 0.1 pg of CuNWs after treatment with glacial acetic acid (GAA). The rate constant (k<sub>app</sub>) and activity factor (K) of this study is 18 and ~10<sup>10</sup> fold in comparison to previous study done with no GAA treatment applied, respectively. The CuNWs showed an outstanding catalytic activity for at least ten consecutive reusability tests with a consistent result in 4-NP reduction. In clock reaction of MB, approximately 99% of reduction of MB into LMB was achieved in ~5 s by using 2 μg CuNWs. Moreover, the addition of NaOH can improve the rate and degree of recolorization of LMB to MB. |
topic |
catalytic activity clock cycle acetic acid treatment metal nanowires <i>p</i>-nitrophenol reduction of nitro compounds |
url |
https://www.mdpi.com/2079-4991/9/7/936 |
work_keys_str_mv |
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