Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation
Incorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO–Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization...
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MDPI AG
2021-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/7/1688 |
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| author | Fatma Mohamed Abeer Enaiet Allah Khulood A. Abu Al-Ola Mohamed Shaban |
| author_facet | Fatma Mohamed Abeer Enaiet Allah Khulood A. Abu Al-Ola Mohamed Shaban |
| author_sort | Fatma Mohamed |
| collection | DOAJ |
| description | Incorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO–Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization of pyrrole in the presence of ZnO nanoparticles and AgNO<sub>3</sub> as an oxidant. The antimicrobial behavior of the ZnO–Ag core combined with the electrical properties of the conducting PPy shell created a special ZnO–Ag/PPy nanocomposite with inherent adsorption behavior and antimicrobial properties. More impressively, the as-prepared ZnO–Ag/PPy displayed enhanced adsorption of Cd<sup>2+</sup> and PO<sub>4</sub><sup>3−</sup> ions in the mixed solution. At pH 8, it had overall removal efficiencies of 95% and 75% for Cd<sup>2+</sup>and PO<sub>4</sub><sup>3−</sup> ions, respectively. The Freundlich adsorption model, rather than the Langmuir adsorption model, better fits the adsorption isotherm results. The adsorption kinetics also followed the pseudo-second-order kinetic model. Additionally, the engineered nanocomposite demonstrated antifungal activity against different fungi, as well as remarkable antibacterial activity against Gram-negative and Gram-positive bacteria. The synergistic combination of crystallinity, coherence of the ZnO–Ag core in the PPy matrix, and the negative zeta potential all contribute to this nanocomposite’s high efficiency. Our results have significant consequences in the wastewater bioremediation field using a simple operation process. |
| first_indexed | 2024-03-10T10:00:31Z |
| format | Article |
| id | doaj.art-4a5e5799362046adab765a970828676f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T10:00:31Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4a5e5799362046adab765a970828676f2023-11-22T01:58:12ZengMDPI AGNanomaterials2079-49912021-06-01117168810.3390/nano11071688Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water BioremediationFatma Mohamed0Abeer Enaiet Allah1Khulood A. Abu Al-Ola2Mohamed Shaban3Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, EgyptChemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, EgyptDepartment of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi ArabiaNanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, EgyptIncorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO–Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization of pyrrole in the presence of ZnO nanoparticles and AgNO<sub>3</sub> as an oxidant. The antimicrobial behavior of the ZnO–Ag core combined with the electrical properties of the conducting PPy shell created a special ZnO–Ag/PPy nanocomposite with inherent adsorption behavior and antimicrobial properties. More impressively, the as-prepared ZnO–Ag/PPy displayed enhanced adsorption of Cd<sup>2+</sup> and PO<sub>4</sub><sup>3−</sup> ions in the mixed solution. At pH 8, it had overall removal efficiencies of 95% and 75% for Cd<sup>2+</sup>and PO<sub>4</sub><sup>3−</sup> ions, respectively. The Freundlich adsorption model, rather than the Langmuir adsorption model, better fits the adsorption isotherm results. The adsorption kinetics also followed the pseudo-second-order kinetic model. Additionally, the engineered nanocomposite demonstrated antifungal activity against different fungi, as well as remarkable antibacterial activity against Gram-negative and Gram-positive bacteria. The synergistic combination of crystallinity, coherence of the ZnO–Ag core in the PPy matrix, and the negative zeta potential all contribute to this nanocomposite’s high efficiency. Our results have significant consequences in the wastewater bioremediation field using a simple operation process.https://www.mdpi.com/2079-4991/11/7/1688ZnO–Ag/polypyrrole nanocompositecore–shellelectrical propertiesantimicrobial activityadsorptionbioremediation of water |
| spellingShingle | Fatma Mohamed Abeer Enaiet Allah Khulood A. Abu Al-Ola Mohamed Shaban Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation Nanomaterials ZnO–Ag/polypyrrole nanocomposite core–shell electrical properties antimicrobial activity adsorption bioremediation of water |
| title | Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation |
| title_full | Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation |
| title_fullStr | Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation |
| title_full_unstemmed | Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation |
| title_short | Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation |
| title_sort | design and characterization of a novel zno ag polypyrrole core shell nanocomposite for water bioremediation |
| topic | ZnO–Ag/polypyrrole nanocomposite core–shell electrical properties antimicrobial activity adsorption bioremediation of water |
| url | https://www.mdpi.com/2079-4991/11/7/1688 |
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