Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction
Copper-oxide-based nanomaterials play an important role as a low-cost alternative to nanoparticles of precious metals for the catalytic reduction of 4-nitrophenols. In this study, CuO nanoparticles were synthesized by a microwave-assisted method using Cordia africana Lam. leaf extract for reduction...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2021/5581621 |
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| author | Aklilu Guale Bekru Osman Ahmed Zelekew Dinsefa Mensur Andoshe Fedlu Kedir Sabir Rajalakshmanan Eswaramoorthy |
| author_facet | Aklilu Guale Bekru Osman Ahmed Zelekew Dinsefa Mensur Andoshe Fedlu Kedir Sabir Rajalakshmanan Eswaramoorthy |
| author_sort | Aklilu Guale Bekru |
| collection | DOAJ |
| description | Copper-oxide-based nanomaterials play an important role as a low-cost alternative to nanoparticles of precious metals for the catalytic reduction of 4-nitrophenols. In this study, CuO nanoparticles were synthesized by a microwave-assisted method using Cordia africana Lam. leaf extract for reduction or stabilization processes. The synthesized CuO nanoparticles (NPs) were characterized using X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The analysis indicated that nanocrystals of the monoclinic CuO phase having a cluster of agglomerated morphology with a crystallite size of about 9 nm were synthesized. We also evaluated the catalytic performance of CuO NPs against 4-nitrophenol (4-NP) reduction. The catalyst has shown excellent performance completing the reaction within 12 min. Furthermore, the performance of CuO NPs synthesized at different pH values was investigated, and results indicated that the one synthesized at pH 7 reduced 4-NP effectively in shorter minutes compared to those obtained at higher pH values. The CuO NPs synthesized using Cordia africana Lam. leaf extract exhibited a better reducing capacity with an activity parameter constant of 75.8 min−1·g−1. Thus, CuO synthesized using Cordia africana Lam. holds a potential application for the catalytic conversion of nitroarene compounds into aminoarene. |
| format | Article |
| id | doaj-art-bed1a01404b84151ab03c381f0b47285 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-bed1a01404b84151ab03c381f0b472852025-02-03T01:00:15ZengWileyJournal of Nanotechnology1687-95031687-95112021-01-01202110.1155/2021/55816215581621Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol ReductionAklilu Guale Bekru0Osman Ahmed Zelekew1Dinsefa Mensur Andoshe2Fedlu Kedir Sabir3Rajalakshmanan Eswaramoorthy4Department of Applied Chemistry, Adama Science and Technology University, Adama, EthiopiaDepartment of Materials Science and Engineering, Adama Science and Technology University, Adama, EthiopiaDepartment of Materials Science and Engineering, Adama Science and Technology University, Adama, EthiopiaDepartment of Applied Chemistry, Adama Science and Technology University, Adama, EthiopiaDepartment of Applied Chemistry, Adama Science and Technology University, Adama, EthiopiaCopper-oxide-based nanomaterials play an important role as a low-cost alternative to nanoparticles of precious metals for the catalytic reduction of 4-nitrophenols. In this study, CuO nanoparticles were synthesized by a microwave-assisted method using Cordia africana Lam. leaf extract for reduction or stabilization processes. The synthesized CuO nanoparticles (NPs) were characterized using X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The analysis indicated that nanocrystals of the monoclinic CuO phase having a cluster of agglomerated morphology with a crystallite size of about 9 nm were synthesized. We also evaluated the catalytic performance of CuO NPs against 4-nitrophenol (4-NP) reduction. The catalyst has shown excellent performance completing the reaction within 12 min. Furthermore, the performance of CuO NPs synthesized at different pH values was investigated, and results indicated that the one synthesized at pH 7 reduced 4-NP effectively in shorter minutes compared to those obtained at higher pH values. The CuO NPs synthesized using Cordia africana Lam. leaf extract exhibited a better reducing capacity with an activity parameter constant of 75.8 min−1·g−1. Thus, CuO synthesized using Cordia africana Lam. holds a potential application for the catalytic conversion of nitroarene compounds into aminoarene.http://dx.doi.org/10.1155/2021/5581621 |
| spellingShingle | Aklilu Guale Bekru Osman Ahmed Zelekew Dinsefa Mensur Andoshe Fedlu Kedir Sabir Rajalakshmanan Eswaramoorthy Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction Journal of Nanotechnology |
| title | Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction |
| title_full | Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction |
| title_fullStr | Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction |
| title_full_unstemmed | Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction |
| title_short | Microwave-Assisted Synthesis of CuO Nanoparticles Using Cordia africana Lam. Leaf Extract for 4-Nitrophenol Reduction |
| title_sort | microwave assisted synthesis of cuo nanoparticles using cordia africana lam leaf extract for 4 nitrophenol reduction |
| url | http://dx.doi.org/10.1155/2021/5581621 |
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