Green synthesis and characterization of ZnO/α-Fe2O3 nanocomposites using hydrocotyle umbellata leaf extract and evaluation of their antimicrobial properties
In this study, ZnO/α-Fe2O3 nanocomposites were synthesized via a green coprecipitation method using Hydrocotyle umbellata leaf extract as a reducing and stabilizing agent. The synthesis involved Zn (NO₃)₂.6H₂O, ferric chloride, and sodium hydroxide in various molar ratios of ZnO/α-Fe₂O₃ (9:1, 8:2, 7...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
April 2025
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| In: |
Applied organometallic chemistry
Year: 2025, Jahrgang: 39, Heft: 4, Pages: 1-10 |
| ISSN: | 1099-0739 |
| DOI: | 10.1002/aoc.70121 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/aoc.70121 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/aoc.70121 
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| Verfasserangaben: | Raja Kaliyaperumal, Karuppiah Nagaraj, Karunganathan Sakthikumar, Mohammed F. Albeshr, Gunasekaran Velmurugan |
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| 245 | 1 | 0 | |a Green synthesis and characterization of ZnO/α-Fe2O3 nanocomposites using hydrocotyle umbellata leaf extract and evaluation of their antimicrobial properties |c Raja Kaliyaperumal, Karuppiah Nagaraj, Karunganathan Sakthikumar, Mohammed F. Albeshr, Gunasekaran Velmurugan |
| 246 | 3 | 3 | |a Green synthesis and characterization of ZnO/alpha-Fe 2 O 3 nanocomposites using hydrocotyle umbellata leaf extract and evaluation of their antimicrobial properties |
| 264 | 1 | |c April 2025 | |
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| 520 | |a In this study, ZnO/α-Fe2O3 nanocomposites were synthesized via a green coprecipitation method using Hydrocotyle umbellata leaf extract as a reducing and stabilizing agent. The synthesis involved Zn (NO₃)₂.6H₂O, ferric chloride, and sodium hydroxide in various molar ratios of ZnO/α-Fe₂O₃ (9:1, 8:2, 7:3), followed by calcination at 400°C. The synthesized nanocomposites were analyzed using XRD, FTIR, UV-Vis, and SEM to determine their crystalline structure, functional groups, optical properties, and surface morphology. The XRD analysis confirmed the formation of ZnO and α-Fe₂O₃ phases, whereas FTIR confirmed the presence of metal-oxygen bonds and phenolic compounds from the plant extract. UV-vis analysis showed a redshift in the absorption spectra, indicating a reduction in bandgap energy in ZnO/α-Fe₂O₃ nanocomposites compared to pure ZnO. The SEM results confirmed that the ZnO/α-Fe2O3 composites exhibit excellent crystallinity, with an average crystal size of approximately 39 nm, calculated using the Debye-Scherrer equation. The antimicrobial activity of ZnO/α-Fe₂O₃ nanocomposites was evaluated using the disk diffusion method against Staphylococcus aureus, Escherichia coli, and Aspergillus niger. The ZnO/α-Fe₂O₃ (8:2) formulation showed the strongest antibacterial effect against S. aureus, highlighting its potential for eco-friendly antimicrobial applications. | ||
| 650 | 4 | |a biological activity | |
| 650 | 4 | |a capping agent | |
| 650 | 4 | |a hybrid material | |
| 650 | 4 | |a Iron oxide structure | |
| 650 | 4 | |a magnetic property | |
| 650 | 4 | |a nanocomposite | |
| 650 | 4 | |a plant extract | |
| 650 | 4 | |a SEM | |
| 650 | 4 | |a XRD | |
| 700 | 1 | |a Nagaraj, Karuppiah |e VerfasserIn |4 aut | |
| 700 | 1 | |a Sakthikumar, Karunganathan |e VerfasserIn |4 aut | |
| 700 | 1 | |a Albeshr, Mohammed F. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Velmurugan, Gunasekaran |e VerfasserIn |0 (DE-588)1257460250 |0 (DE-627)1801727740 |4 aut | |
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