Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation
In this work, zinc oxide microparticles doped with cobalt were prepared from two novel layered heterobimetallic monocarboxylates as precursors to obtain uniform shape and size oxide particles, aiming for a photocatalytic removal of methyl orange. Both monocarboxylates produced ZnO doped with Co2O3 a...
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Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
2024-12-01
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| Series: | Bulletin of Chemical Reaction Engineering & Catalysis |
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| Online Access: | https://journal.bcrec.id/index.php/bcrec/article/view/20211 |
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| author | Hélder Inocêncio Ferreira Correa Ralf Ricardo Ramalho Jr Adhimar Flávio Oliveira Fabio da Silva Lisboa |
| author_facet | Hélder Inocêncio Ferreira Correa Ralf Ricardo Ramalho Jr Adhimar Flávio Oliveira Fabio da Silva Lisboa |
| author_sort | Hélder Inocêncio Ferreira Correa |
| collection | DOAJ |
| description | In this work, zinc oxide microparticles doped with cobalt were prepared from two novel layered heterobimetallic monocarboxylates as precursors to obtain uniform shape and size oxide particles, aiming for a photocatalytic removal of methyl orange. Both monocarboxylates produced ZnO doped with Co2O3 after calcination at 700 or 900 °C, in 7 or 12 hours. The particles formed by the laurate precursor presented rectangular prisms shaped, while those formed from stearate were sphere-like particles. All particles ranged from 0.1 to 0.9 μm size, with a direct bandgap of 2.2 to 2.6 eV and an indirect bandgap of 0.25 to 1.70 eV. The ZnO/Co prepared presented photocatalytic activity on methyl orange photodegradation. The solid prepared by the laurate precursor showed a photodegradation rate of 0.00185 min-1, while the one obtained from the stearate precursor presented a photodegradation rate of 0.00860 min-1, eight times greater. These results show that the material may be very useful in removing dyes from water samples. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). |
| format | Article |
| id | doaj-art-01d3676f138842c297d6420242473c5d |
| institution | Kabale University |
| issn | 1978-2993 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS) |
| record_format | Article |
| series | Bulletin of Chemical Reaction Engineering & Catalysis |
| spelling | doaj-art-01d3676f138842c297d6420242473c5d2025-02-02T02:54:01ZengMasyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)Bulletin of Chemical Reaction Engineering & Catalysis1978-29932024-12-0119458559810.9767/bcrec.202118475Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange OxidationHélder Inocêncio Ferreira Correa0Ralf Ricardo Ramalho Jr1Adhimar Flávio Oliveira2https://orcid.org/0000-0003-2586-7359Fabio da Silva Lisboa3Institute of Physics and Chemistry, Federal University of Itajubá, (IFQ/UNIFEI), BPS Avenue, 1303, ZIP Code 37500-903, Itajubá-MG, BrazilInstitute of Physics and Chemistry, Federal University of Itajubá, (IFQ/UNIFEI), BPS Avenue, 1303, ZIP Code 37500-903, Itajubá-MG, BrazilInstitute of Physics and Chemistry, Federal University of Itajubá, (IFQ/UNIFEI), BPS Avenue, 1303, ZIP Code 37500-903, Itajubá-MG, BrazilInstitute of Physics and Chemistry, Federal University of Itajubá, (IFQ/UNIFEI), BPS Avenue, 1303, ZIP Code 37500-903, Itajubá-MG, BrazilIn this work, zinc oxide microparticles doped with cobalt were prepared from two novel layered heterobimetallic monocarboxylates as precursors to obtain uniform shape and size oxide particles, aiming for a photocatalytic removal of methyl orange. Both monocarboxylates produced ZnO doped with Co2O3 after calcination at 700 or 900 °C, in 7 or 12 hours. The particles formed by the laurate precursor presented rectangular prisms shaped, while those formed from stearate were sphere-like particles. All particles ranged from 0.1 to 0.9 μm size, with a direct bandgap of 2.2 to 2.6 eV and an indirect bandgap of 0.25 to 1.70 eV. The ZnO/Co prepared presented photocatalytic activity on methyl orange photodegradation. The solid prepared by the laurate precursor showed a photodegradation rate of 0.00185 min-1, while the one obtained from the stearate precursor presented a photodegradation rate of 0.00860 min-1, eight times greater. These results show that the material may be very useful in removing dyes from water samples. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).https://journal.bcrec.id/index.php/bcrec/article/view/20211monocarboxylatesdyezinc oxidelayered materialsdegradation |
| spellingShingle | Hélder Inocêncio Ferreira Correa Ralf Ricardo Ramalho Jr Adhimar Flávio Oliveira Fabio da Silva Lisboa Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation Bulletin of Chemical Reaction Engineering & Catalysis monocarboxylates dye zinc oxide layered materials degradation |
| title | Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation |
| title_full | Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation |
| title_fullStr | Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation |
| title_full_unstemmed | Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation |
| title_short | Heterobimetallic Zn2+/Co2+ Monocarboxylates as Precursors for ZnO Microparticles Doped with Cobalt and its Photocatalytic Activity in Methyl Orange Oxidation |
| title_sort | heterobimetallic zn2 co2 monocarboxylates as precursors for zno microparticles doped with cobalt and its photocatalytic activity in methyl orange oxidation |
| topic | monocarboxylates dye zinc oxide layered materials degradation |
| url | https://journal.bcrec.id/index.php/bcrec/article/view/20211 |
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