Synthesis and Characterization of SnO2 Nanoparticles Obtained by Sol–Gel Method
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abstract
Tin oxide nanoparticles were synthesized using the sol–gel technique, where metallic tin, ammonia hydroxide, nitric acid, ascorbic acid, ethanol, and deionized water were used. A white powder characteristic of tin oxide was obtained. X-ray diffraction was performed on the synthesis product and identified as cassiterite (SnO2), with a tetragonal unit cell, which lattice parameters are at a = 4.74 Å and c = 3.19 Å, the ICDD-PDF letter is 96-210-4755. Scanning electron microscopy characterization showed that nanoparticles have a spherical morphology and sizes ranging from 23 to 67.6 nm. Analysis performed by infrared spectroscopy show that it has the tin bond oxygen 667 cm−1 region.