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Sol–gel Grown Fe-doped ZnO Nanoparticles: Antibacterial and Structural Behaviors

Mahmoudi Khatir, Nadia and Abdul-Malek, Zulkurnain and Zak, Ali Khorsand and Akbari, Abolghasem and Sabbagh, Farzaneh (2015) Sol–gel Grown Fe-doped ZnO Nanoparticles: Antibacterial and Structural Behaviors. Journal of Sol-Gel Science and Technology. pp. 1-8. ISSN 0928-0707

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Abstract

Iron (Fe) doped Zinc-oxide (ZnO) nanoparticles (NPs) with composition Zn1-xFexO, where x = 0.0, 0.01, 0.03, and 0.05 are synthesized by sol–gel method from nitrate precursors and gelatin at fixed calcination temperature of 650 °C maintained for 2 h. The effects of Fe contents on the antibacterial and structural features of these NPs are inspected. Prepared NPs are characterized via X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD patterns display the single crystalline nature of samples that exists in hexagonal wurtzite phase. SEM images reveal the existence of nearly spherical shaped single-crystalline NPs. A quantitative analysis of the size dependent strain effects is performed through Williamson-Hall and size-strain plot and its impact of strain on peak broadening is demonstrated. The values of strain, stress, and energy density are calculated. The estimated NPs mean size from FESEM and size-strain plot (SSP) is found to be in close agreement. ZnO NPs in the presence of Fe show great inhibition towards E. coli bacterial growth. It is asserted that, Fe acting as impurity in the ZnO nanostructure enhances the power oxidation of ZnO which results an augmentation of antimicrobial activity. Keywords: ZnO, lattice strain, crystallite size, antibacterial activity, E. coli

Item Type: Article
Uncontrolled Keywords: Fe-doped ZnO; Lattice strain; Crystallite size; Antibacterial activity; E. coli
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Faculty of Civil Engineering & Earth Resources
Depositing User: Dr. Abolghasem Akbari
Date Deposited: 20 Jan 2016 23:53
Last Modified: 20 Jan 2016 23:53
URI: http://umpir.ump.edu.my/id/eprint/11739
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