Influence of Fe concentration on the physicochemical properties and inactivation of Pseudomonas aeruginosa of ZnO nanoparticles

Undoped and Fe-doped ZnO nanoparticles were synthesized by the sol–gel method, and the related physicochemical properties were characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric anal...

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Bibliographic Details
Published in:Indian journal of physics 2021-05, Vol.95 (5), p.857-863
Main Authors: Abdolahzadeh Ziabari, Ali, Mazloum Jalali, Kamyar, Shadan, Nima, Meraat, Rafieh
Format: Article
Language:English
Subjects:
Annealing
Astrophysics and Astroparticles
Deactivation
Fourier transforms
Grain size
Hexagonal phase
Infrared analysis
Infrared spectroscopy
Iron
Nanoparticles
Optical density
Original Paper
Oxidation
Photoelectrons
Physics
Physics and Astronomy
Pseudomonas aeruginosa
Scanning electron microscopy
Sol-gel processes
Spectrum analysis
Thermogravimetric analysis
Valence
Wurtzite
X ray photoelectron spectroscopy
Zinc oxide
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Summary:Undoped and Fe-doped ZnO nanoparticles were synthesized by the sol–gel method, and the related physicochemical properties were characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy (SEM). Annealing of the nanoparticles at 400 and 500 °C was studied. The prepared nanoparticles showed the hexagonal phase of wurtzite structure, and the grain size was in the range of 30–47 nm. Fe ions were in oxidation state of + 3 as was revealed by XPS analysis of the 0.7 at% Fe-doped powder. The photocatalytic properties of ZnO:Fe nanoparticles were investigated by inactivation of Pseudomonas aeruginosa under UV–B lamp irradiation. Optical density, colony counting method and SEM were used to survey the antibacterial activity of the nanoparticles. After analyzing the results, it was found that the prepared nanoparticles have a very effective antimicrobial activity against P. aeruginosa . This activity increases by increasing/decreasing the amount of Fe in the compound/annealing temperature. Heavily doped ZnO nanoparticles showed a considerable antibacterial effect against P. aeruginosa .
ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-020-01751-1