期刊
MATERIALS
卷 14, 期 16, 页码 -出版社
MDPI
DOI: 10.3390/ma14164747
关键词
ZnO; photocatalyst; antibacterial activity; water purification
类别
资金
- Romanian Ministry of Education and Research, CNCS-UEFISCDI within PNCD III [PN-III-P1-1.1-PD-2019-1156]
In this study, zinc oxide nanoparticles were synthesized and characterized by various methods for morphology and structure analysis, photocatalytic activity, and antimicrobial activity. The nanoparticles exhibited strong photocatalytic activity against a model pollutant and the strongest antibacterial activity against Gram-positive bacteria.
In this study, zinc oxide nanoparticles were synthesized through a simple co-precipitation method starting from zinc acetate dihydrate and sodium hydroxide as reactants. The as-obtained ZnO nanoparticles were morphologically and structurally characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photocatalytic activity, and by determining the antimicrobial activity against Gram-negative and Gram-positive bacteria. The XRD pattern of the zinc oxide nanoparticles showed the wurtzite hexagonal structure, and its purity highlighted that the crystallinity correlated with the presence of a single product, zinc oxide. The ZnO nanoparticles have an average crystallite size of 19 +/- 11 nm, which is in accordance with the microscopic data. ZnO nanoparticles were tested against methyl orange, used as a model pollutant, and it was found that they exhibit strong photocatalytic activity against this dye. The antibacterial activity of ZnO nanoparticles was tested against Gram-negative and Gram-positive strains (Escherichia coli, Staphylococcus aureus, and Candida albicans). The strongest activity was found against Gram-positive bacteria (S. aureus).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据