期刊
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
卷 97, 期 1, 页码 27-38出版社
SPRINGER
DOI: 10.1007/s10971-020-05431-8
关键词
SrFeO3-delta; Thermal; optical; Magnetic; Antimicrobial properties
This study presents the synthesis and characterization of SrFeO3-delta nanoparticles as an antimicrobial agent, showing its structural, morphological, and performance characteristics. The results demonstrate that SrFeO3-delta nanoparticles exhibit strong antimicrobial activity against a variety of bacterial and fungal strains.
In this work, synthesis and characterization of SrFeO3-delta nanoparticles as antimicrobial agent are presented. Structural characterization of SrFeO3-delta sample shows that it has a cubic (Pm3m) phase with minor tetragonal phase. The morphology of the SrFeO3-delta nanoparticles sample was characterized by a field emission scanning electron microscope (FE-SEM) and high resolution transmission electron microscopy (HRTEM). Mossbauer spectroscopy and X-ray photoelectron spectroscopy (XPS) results showed that the iron exists in oxidation states Fe3+, Fe3.5+, and Fe4+. The SrFeO3-delta nanoparticles sample exhibits energy band gap (E-g = 1.75 eV) which lies in the Visible region. Thermal and magnetic studies provide an evidence for ferroelectricity and antiferromagnetic with small amount of ferromagnetic in SrFeO3-delta nanoparticles sample, respectively. SrFeO3-delta nanoparticles sample showing powerful activity to fight both of tested Gram-positive, Gram-negative bacteria, and fungi strains. The antimicrobial activity as well as the minimal inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of the SrFeO3-delta nanoparticles sample have been investigated.
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