| Preparation and Characterization of Cobalt and Zinc Oxide Nanoparticles using Green Synthesis method for technological development |
| Paper ID : 1064-ICBAS2024 (R1) |
| Authors |
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Kamilia Sedeek Abdu *1, Fatma Abdel Aziz Sultan2, Radwa Abass Mohamed3, Shyma Ali Said4, Fatma Abdelaziz Sultan5, Radwa Abbas Mohamed6, Fatma abdelaziz sultan7, Radwa Mohamed Abbas8, Shimaa Ali Said9 1Faculty of science, Al-Azhar University (Girls Branch), Ussef Abass Street, Cairo,11751 2Physics Department, Faculty of science, Al-Azar university 3Lab. Of petroleum research, petroleum institute 4Physics Department, Fac. of Science, Al-Azhar university 5Faculty of science, Al-Azhar University 6Institute of Petroleum 7Al-Azhar University 8Petroleum Institute 9Physics department, Faculty of Science, Al-Azhar University |
| Abstract |
| This work outlines some interesting results regarding the physical and optical properties of Co3O4 and ZnO nanoparticles synthesized by the sol-gel method. The chemical sol-gel method yields (Co3O4)c and (ZnO)c samples whereas the green synthesis method using eggplant as extract produces (Co3O4)gs and (ZnO)gs samples. Structural studies usingthe XRD technique reveal the formation of the cubic and the hexagonal phases for Co3O4 and ZnO samples, respectively. No valuable changes occur in lattice parameters upon green synthesis. The FTIR studies confirm the formation of oxide networks for both. Optical data demonstrate the shift of the absorption edge to higher energy for (Co3O4)gs. On the contrary, (ZnO)c shows a decrease in the optical band gap value upon green synthesis. Regarding the detected photoluminescence peaks, (Co3O4)c and (Co3O4)gs show respectively blue and green emission colors, whereas both (ZnO)c and (ZnO)gs produce green emissions. The reported data nominate both chemically and green synthesized oxides using eggplant extract as leaders in photocatalytic and light emission technology. |
| Keywords |
| Green synthesis with eggplant extract, lattice dynamics, structural and optical characterization. |
| Status: Accepted |