High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers
Nanostructured β-CoMoO4 catalysts have been prepared via the thermal decomposition of an oxalate precursor. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller method (BET), energy dispersive X-ray spectroscopy (EDX), and transmission elect...
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MDPI AG
2018-02-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/23/2/364 |
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| author | Fahd Al-Wadaani Ahmed Omer Mostafa Abboudi Hicham Oudghiri Hassani Souad Rakass Mouslim Messali Mohammed Benaissa |
| author_facet | Fahd Al-Wadaani Ahmed Omer Mostafa Abboudi Hicham Oudghiri Hassani Souad Rakass Mouslim Messali Mohammed Benaissa |
| author_sort | Fahd Al-Wadaani |
| collection | DOAJ |
| description | Nanostructured β-CoMoO4 catalysts have been prepared via the thermal decomposition of an oxalate precursor. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller method (BET), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). The efficiency of these nanoparticles in the reduction of ortho- and meta-nitrophenol isomers (2-NP, 3-NP, and 4-NP) to their corresponding aminophenols was tested using UV-visible spectroscopy measurements. It was found that, with a β-CoMoO4 catalyst, NaBH4 reduces 3-NP instantaneously, whilst the reduction of 2-NP and 4-NP is slower at 8 min. This difference is thought to arise from the lower acidity of 3-NP, where the negative charge of the phenolate could not be delocalized onto the oxygen atoms of the meta-nitro group. |
| first_indexed | 2024-12-16T06:58:07Z |
| format | Article |
| id | doaj.art-5ac2d5a45c524f549e6718aba926419d |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-16T06:58:07Z |
| publishDate | 2018-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-5ac2d5a45c524f549e6718aba926419d2022-12-21T22:40:14ZengMDPI AGMolecules1420-30492018-02-0123236410.3390/molecules23020364molecules23020364High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol IsomersFahd Al-Wadaani0Ahmed Omer1Mostafa Abboudi2Hicham Oudghiri Hassani3Souad Rakass4Mouslim Messali5Mohammed Benaissa6Chemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Almadinah 30002, Saudi ArabiaLMPHE, Département de Physique, Faculté des Sciences, Université Mohammed V, B.P. 1014 RP, Rabat 10000, MoroccoNanostructured β-CoMoO4 catalysts have been prepared via the thermal decomposition of an oxalate precursor. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller method (BET), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). The efficiency of these nanoparticles in the reduction of ortho- and meta-nitrophenol isomers (2-NP, 3-NP, and 4-NP) to their corresponding aminophenols was tested using UV-visible spectroscopy measurements. It was found that, with a β-CoMoO4 catalyst, NaBH4 reduces 3-NP instantaneously, whilst the reduction of 2-NP and 4-NP is slower at 8 min. This difference is thought to arise from the lower acidity of 3-NP, where the negative charge of the phenolate could not be delocalized onto the oxygen atoms of the meta-nitro group.http://www.mdpi.com/1420-3049/23/2/364nanostructuresβ-CoMoO4nitrophenol reductionnanoparticles |
| spellingShingle | Fahd Al-Wadaani Ahmed Omer Mostafa Abboudi Hicham Oudghiri Hassani Souad Rakass Mouslim Messali Mohammed Benaissa High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers Molecules nanostructures β-CoMoO4 nitrophenol reduction nanoparticles |
| title | High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers |
| title_full | High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers |
| title_fullStr | High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers |
| title_full_unstemmed | High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers |
| title_short | High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers |
| title_sort | high catalytic efficiency of nanostructured β comoo4 in the reduction of the ortho meta and para nitrophenol isomers |
| topic | nanostructures β-CoMoO4 nitrophenol reduction nanoparticles |
| url | http://www.mdpi.com/1420-3049/23/2/364 |
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