Synthesis, characterizations, antibacterial and photoluminescence studies of solution combustion-derived α-Al 2 O 3 nanoparticles

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Abstract

In this work, we report a novel, economical, low temperature solution combustion synthesis (SCS) method to prepare α-Al 2 O 3 (Corundum) nanoparticles. Powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared spectroscopy (FT-IR), BET surface area and ultraviolet visible spectroscopy (UV-vis) measurements were used to characterize the product. Antibacterial studies were examined against gram -ve Klebsiella aerogenes, Escherichia coli, Pseudomonas desmolyticum and gram +ve Staphylococcus aureus bacteria by agar well diffusion method. The α-Al 2 O 3 nanoparticles showed substantial effect on all the four bacterial strains. Photoluminescence (PL) measurements under excitation at about 255nm show that the alumina nanoparticles have emission peaks at 394 and 392nm.

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Prashanth, P. A., Raveendra, R. S., Hari Krishna, R., Ananda, S., Bhagya, N. P., Nagabhushana, B. M., … Raja Naika, H. (2015). Synthesis, characterizations, antibacterial and photoluminescence studies of solution combustion-derived α-Al 2 O 3 nanoparticles. Journal of Asian Ceramic Societies, 3(3), 345–351. https://doi.org/10.1016/j.jascer.2015.07.001

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