Enhancing the Antibacterial Efficiency of ZnO Nanopowders Synthesized by Combustion Method Through Ag ＋ Fe Co-doping

• Published in: Acta metallurgica sinica : English letters 2015-11, Vol.28 (11), p.1407-1413
• Main Authors: Sathish, P., Ravichandran, K., Sakthivel, B., Panneerselvam, A.
• Format: Article
• Language: English
• Subjects: Bacteria; Characterization and Evaluation of Materials; Chemistry and Materials Science; Combustion; Corrosion and Coatings; Crystal defects; Doping; Efficiency; Fourier transforms; Grain size; Gram-positive bacteria; Materials Science; Metallic Materials; Methods; Nanostructure; Nanotechnology; Nitrates; Optical properties; Organometallic Chemistry; Photoluminescence; Radiation; Scanning electron microscopy; Silver; Spectroscopy/Spectrometry; Spectrum analysis; Staphylococcus aureus; Synthesis; Tribology; Vibrio; Vibrio cholerae; Vibrio parahaemolyticus; Wurtzite; X ray photoelectron spectroscopy; Zinc oxide; 六方纤锌矿结构; 共掺杂; 合成; 扫描电子显微镜; 抗菌性能; 燃烧法; 纳米ZnO
• ISSN: 1006-7191; 2194-1289
• DOI: 10.1007/s40195-015-0340-7

（Ag ＋ Fe）-doped ZnO nanopowders have been synthesized using combustion method. Ag doping level was kept as 2 at.%, and Fe doping level was varied from 3 to 6 at,%, and the structural, optical, surface morphological, and antibacterial properties have been investigated. The structural studies show that ZnO/（Ag 4-Fe） nanopowders have hexagonal wurtzite structure with a preferential orientation along the （101） plane. The FE-SEM images indicate that there is a gradual decrease in the grain size with the increase in the doping level of Fe, and the TEM images are correlated well with FE-SEM images. The XPS profile clearly confirms the presence of expected elemental composition. Photolumi- nescence studies reveal the presence of extrinsic defects in the material. Antibacterial activity of Ag- and Fe-doped ZnO nanopowders against Vibrio parahaemolyticus, Vibrio Cholerae, and Staphylococcus aureus bacteria was also investigated.