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Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles
Photodegradation is an efficient strategy for the removal of organic pollutants from wastewater. Due to their distinct properties and extensive applications, semiconductor nanoparticles have emerged as promising photocatalysts. In this work, olive (Olea Europeae) fruit extract-based zinc oxide nanop...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10295640/ https://www.ncbi.nlm.nih.gov/pubmed/37371931 http://dx.doi.org/10.3390/antiox12061201 |
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author | Ghaffar, Sadia Abbas, Azhar Naeem-ul-Hassan, Muhammad Assad, Nasir Sher, Muhammad Ullah, Sami Alhazmi, Hassan A. Najmi, Asim Zoghebi, Khalid Al Bratty, Mohammed Hanbashi, Ali Makeen, Hafiz A. Amin, Hatem M. A. |
author_facet | Ghaffar, Sadia Abbas, Azhar Naeem-ul-Hassan, Muhammad Assad, Nasir Sher, Muhammad Ullah, Sami Alhazmi, Hassan A. Najmi, Asim Zoghebi, Khalid Al Bratty, Mohammed Hanbashi, Ali Makeen, Hafiz A. Amin, Hatem M. A. |
author_sort | Ghaffar, Sadia |
collection | PubMed |
description | Photodegradation is an efficient strategy for the removal of organic pollutants from wastewater. Due to their distinct properties and extensive applications, semiconductor nanoparticles have emerged as promising photocatalysts. In this work, olive (Olea Europeae) fruit extract-based zinc oxide nanoparticles (ZnO@OFE NPs) were successfully biosynthesized using a one-pot sustainable method. The prepared ZnO NPs were systematically characterized using UV-Vis, FTIR, SEM, EDX and XRD and their photocatalytic and antioxidant activity was evaluated. SEM demonstrated the formation of spheroidal nanostructures (57 nm) of ZnO@OFE and the EDX analysis confirmed its composition. FTIR suggested the modification/capping of the NPs with functional groups of phytochemicals from the extract. The sharp XRD reflections revealed the crystalline nature of the pure ZnO NPs with the most stable hexagonal wurtzite phase. The photocatalytic activity of the synthesized catalysts was evaluated by measuring the degradation of methylene blue (MB) and methyl orange (MO) dyes under sunlight irradiation. Improved degradation efficiencies of 75% and 87% were achieved within only 180 min with photodegradation rate constant k of 0.008 and 0.013 min(−1) for MB and MO, respectively. The mechanism of degradation was proposed. Additionally, ZnO@OFE NPs exhibited potent antioxidant activity against DPPH, hydroxyl, peroxide and superoxide radicals. Hence, ZnO@OFE NPs may have potential as a cost-effective and green photocatalyst for wastewater treatment. |
format | Online Article Text |
id | pubmed-10295640 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-102956402023-06-28 Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles Ghaffar, Sadia Abbas, Azhar Naeem-ul-Hassan, Muhammad Assad, Nasir Sher, Muhammad Ullah, Sami Alhazmi, Hassan A. Najmi, Asim Zoghebi, Khalid Al Bratty, Mohammed Hanbashi, Ali Makeen, Hafiz A. Amin, Hatem M. A. Antioxidants (Basel) Article Photodegradation is an efficient strategy for the removal of organic pollutants from wastewater. Due to their distinct properties and extensive applications, semiconductor nanoparticles have emerged as promising photocatalysts. In this work, olive (Olea Europeae) fruit extract-based zinc oxide nanoparticles (ZnO@OFE NPs) were successfully biosynthesized using a one-pot sustainable method. The prepared ZnO NPs were systematically characterized using UV-Vis, FTIR, SEM, EDX and XRD and their photocatalytic and antioxidant activity was evaluated. SEM demonstrated the formation of spheroidal nanostructures (57 nm) of ZnO@OFE and the EDX analysis confirmed its composition. FTIR suggested the modification/capping of the NPs with functional groups of phytochemicals from the extract. The sharp XRD reflections revealed the crystalline nature of the pure ZnO NPs with the most stable hexagonal wurtzite phase. The photocatalytic activity of the synthesized catalysts was evaluated by measuring the degradation of methylene blue (MB) and methyl orange (MO) dyes under sunlight irradiation. Improved degradation efficiencies of 75% and 87% were achieved within only 180 min with photodegradation rate constant k of 0.008 and 0.013 min(−1) for MB and MO, respectively. The mechanism of degradation was proposed. Additionally, ZnO@OFE NPs exhibited potent antioxidant activity against DPPH, hydroxyl, peroxide and superoxide radicals. Hence, ZnO@OFE NPs may have potential as a cost-effective and green photocatalyst for wastewater treatment. MDPI 2023-06-01 /pmc/articles/PMC10295640/ /pubmed/37371931 http://dx.doi.org/10.3390/antiox12061201 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ghaffar, Sadia Abbas, Azhar Naeem-ul-Hassan, Muhammad Assad, Nasir Sher, Muhammad Ullah, Sami Alhazmi, Hassan A. Najmi, Asim Zoghebi, Khalid Al Bratty, Mohammed Hanbashi, Ali Makeen, Hafiz A. Amin, Hatem M. A. Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title | Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title_full | Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title_fullStr | Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title_full_unstemmed | Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title_short | Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles |
title_sort | improved photocatalytic and antioxidant activity of olive fruit extract-mediated zno nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10295640/ https://www.ncbi.nlm.nih.gov/pubmed/37371931 http://dx.doi.org/10.3390/antiox12061201 |
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