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In the sol-gel process, monodisperse and uniform size silicon dioxide nanoparticles have been prepared for the first time by using the ultrasound method. In the ethanol medium, the silica particles were obtained by hydrolysis of tetraethyl orthosilicate (TEOS), and the effect of different reagents on the particle size was studied in detail. A variety of different sizes in the range of 20-460nm particles of the synthesis, (2.8-14 molL-1), ethanol (1-8 molL-1), water (3-14 molL-1), and TEOS (0.012-0.12 molL-1), and the size of the particles was measured in scanning electrons microscopic (SEM) and transmission electron microscopy (TEM). In addition to the above observations, the effect of temperature on particle size was also studied. The results obtained in this study are consistent with the results of the electron absorption behavior of the observed silicon dioxide particles measured by UV-Vis spectrophotometry.

Silicon dioxide nanoparticles occupy a prominent position in research because they are easy to prepare and widely used in a variety of industries, such as catalysts, pigments, pharmaceuticals, electronic and thin film substrates, electronic and thermal insulators, and humidity sensors. The quality of some of these products is highly dependent on the particle size and particle size distribution of these particles.



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