Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract
ZnO nanoparticles (NPs) were synthesized using Rosmarinus officinalis leaf extract at 80 °C (ZnO-80) and 180 °C (ZnO-180). The powder was characterized and tested for the degradation of methylene blue (MB) and crystal violet (CV) under sunlight. FTIR analyzes revealed that Rosmarinus officinalis lea...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-04-01
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| Series: | Green Chemistry Letters and Reviews |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/17518253.2022.2089059 |
| _version_ | 1811227130499956736 |
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| author | Tahani Saad Algarni Naaser A. Y. Abduh Abdullah Al Kahtani Ahmed Aouissi |
| author_facet | Tahani Saad Algarni Naaser A. Y. Abduh Abdullah Al Kahtani Ahmed Aouissi |
| author_sort | Tahani Saad Algarni |
| collection | DOAJ |
| description | ZnO nanoparticles (NPs) were synthesized using Rosmarinus officinalis leaf extract at 80 °C (ZnO-80) and 180 °C (ZnO-180). The powder was characterized and tested for the degradation of methylene blue (MB) and crystal violet (CV) under sunlight. FTIR analyzes revealed that Rosmarinus officinalis leaf extract contains phenolic compounds, and accordingly a mechanism for the formation of ZnO NPs was proposed. The characterizations by XRD, TEM and SEM and fluorescence spectroscopy showed that ZnO-80 NPs have smaller size than those of ZnO-180 which exhibited flakier agglomerated spherical structures. Photocatalytic tests showed that ZnO-80 degraded MB by 99.64% in 45 min while ZnO-180 degraded it by 98.82% in 60 min. The superior performance of ZnO-80 over ZnO-180 is due to the fact that ZnO-80 has smaller crystallites, higher specific surface area and higher pore volumes than ZnO-180. When reused, ZnO-80 only showed a slight decrease in the rate of degradation (2.95%). These results indicate that ZnO-80 can be considered as a promising photocatalyst for wastewater treatment. It was prepared by a simple and inexpensive procedure, and unlike many photocatalytic tests using an artificial light source, in the present work sunlight was used. |
| first_indexed | 2024-04-12T09:36:18Z |
| format | Article |
| id | doaj.art-0afa49cbb3cf4991b70169d0ca36d5b7 |
| institution | Directory Open Access Journal |
| issn | 1751-8253 1751-7192 |
| language | English |
| last_indexed | 2024-04-12T09:36:18Z |
| publishDate | 2022-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Green Chemistry Letters and Reviews |
| spelling | doaj.art-0afa49cbb3cf4991b70169d0ca36d5b72022-12-22T03:38:12ZengTaylor & Francis GroupGreen Chemistry Letters and Reviews1751-82531751-71922022-04-0115246047310.1080/17518253.2022.2089059Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extractTahani Saad Algarni0Naaser A. Y. Abduh1Abdullah Al Kahtani2Ahmed Aouissi3Department of Chemistry, King Saud University, Riyadh, Saudi ArabiaDepartment of Chemistry, King Saud University, Riyadh, Saudi ArabiaDepartment of Chemistry, King Saud University, Riyadh, Saudi ArabiaDepartment of Chemistry, King Saud University, Riyadh, Saudi ArabiaZnO nanoparticles (NPs) were synthesized using Rosmarinus officinalis leaf extract at 80 °C (ZnO-80) and 180 °C (ZnO-180). The powder was characterized and tested for the degradation of methylene blue (MB) and crystal violet (CV) under sunlight. FTIR analyzes revealed that Rosmarinus officinalis leaf extract contains phenolic compounds, and accordingly a mechanism for the formation of ZnO NPs was proposed. The characterizations by XRD, TEM and SEM and fluorescence spectroscopy showed that ZnO-80 NPs have smaller size than those of ZnO-180 which exhibited flakier agglomerated spherical structures. Photocatalytic tests showed that ZnO-80 degraded MB by 99.64% in 45 min while ZnO-180 degraded it by 98.82% in 60 min. The superior performance of ZnO-80 over ZnO-180 is due to the fact that ZnO-80 has smaller crystallites, higher specific surface area and higher pore volumes than ZnO-180. When reused, ZnO-80 only showed a slight decrease in the rate of degradation (2.95%). These results indicate that ZnO-80 can be considered as a promising photocatalyst for wastewater treatment. It was prepared by a simple and inexpensive procedure, and unlike many photocatalytic tests using an artificial light source, in the present work sunlight was used.https://www.tandfonline.com/doi/10.1080/17518253.2022.2089059ZnOnanoparticleRosmarinus officinalisphotodegradationdye |
| spellingShingle | Tahani Saad Algarni Naaser A. Y. Abduh Abdullah Al Kahtani Ahmed Aouissi Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract Green Chemistry Letters and Reviews ZnO nanoparticle Rosmarinus officinalis photodegradation dye |
| title | Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract |
| title_full | Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract |
| title_fullStr | Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract |
| title_full_unstemmed | Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract |
| title_short | Photocatalytic degradation of some dyes under solar light irradiation using ZnO nanoparticles synthesized from Rosmarinus officinalis extract |
| title_sort | photocatalytic degradation of some dyes under solar light irradiation using zno nanoparticles synthesized from rosmarinus officinalis extract |
| topic | ZnO nanoparticle Rosmarinus officinalis photodegradation dye |
| url | https://www.tandfonline.com/doi/10.1080/17518253.2022.2089059 |
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