Zn1-xMgxO Nanocomposites: Synthesis, Structural, Optical Properties and Antibacterial Activity | ||||
| Egyptian Journal of Physics | ||||
| Volume 51, Issue 1, 2023, Page 35-56 PDF (2.81 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejphysics.2022.157498.1085 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Samah Abdelaziem Taha 1; Mohammed Ezzeldien2; K. H. Omran3; Mahmoud Sayed Abd El-sadek  4
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| 1Nanomaterials Lab, Physics Departement, Faculty of Science, South Valley University,Qena 83523, Egypt | ||||
| 2Mechanical Lab, Physics Department, Faculty of Science, South Valley University, Qena-83523, Egypt | ||||
| 3Nanomaterials Lab., Physics Department, Faculty of Science, South Valley University, Qena-83523, Egypt. | ||||
| 4Physics Department, Faculty of Science, South Valley University | ||||
| Abstract | ||||
| Zn1-xMgxO nanocomposites were synthesized by a modified sol-gel method. The effect of increasing Mg content on structural, optical properties, and antibacterial activity was studied. The structure and physical properties of the Zn1-xMgxO nanocomposites were characterized by thermogravimetric (TG) analysis, Fourier-transform infrared spectroscopy (FT-IR), X-Ray Diffraction (XRD), transmission electron microscope (TEM). The optical properties were investigated by UV-visible spectroscopy and Photo luminesce spectra (PL). The thermal properties and the weight stability were studied for the samples using TG-Analysis to determine the best annealing temperature at 550 °C. The XRD result confirms the Clear indications for segregation into a hexagonal and a cubic phase are found for samples having magnesium content between 0.2 ≤ x ≤ 0.8, according to Scherer’s formula, the average particle size of the synthesized nanocomposites is in the range of 16.32- 25.56 nm. TEM images showed hexagonal, irregular, and spherical shapes. The calculated band gap energies (Eg) of the (Zn1-xMgxO) nanoparticles were changed from 3.188 eV to 3.31 eV by increasing of Mg concentration in the Zn1-xMgxO nanocomposites. The XRD and UV-vis analysis results indicated that the physical characteristics of Zn1-xMgxO nanocomposite were dependent on increasing the incorporation of Mg2+ ion concentration. The antibacterial assessment illustrated that The ZnO-MgO nanocomposite showed excellent antibacterial activity, the inhibition zoon increases from 12 mm for pure ZnO to 15 mm for (Zn1-xMgxO) nanocomposite with Mg ratio (x=0.4). The result concluded that Zn1-xMgxO nanocomposites have significant potential for antibacterial applications. | ||||
| Keywords | ||||
| Keywords: Zn1-xMgxO nanocomposites; Structural analysis; Optical Properties; Antibacterial activity | ||||
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