Abstract
The purpose of this research was to analyze the effect of caustic fusion temperature on the size, and impurity of Nano-zircon produced from zircon sand. Caustic fusion of zircon sand using NaOH was conducted with varied temperatures of 400-600 °C, followed by water leaching, acid leaching, precipitation, and calcination to produce zirconia nanoparticle powder. The synthesized zirconia nanoparticle was analyzed using FT-IR and SEM. The yield of the product was also determined and the correlation between varied caustic fusion temperature and yield and diameter product was determined using the least square equation. From the FT-IR spectrum, it is shown that the presence of -OH hydroxyl groups at a wavelength of 3417.725 cm-1 indicates the presence of ≡Si-OH groups. At wave 2258.504 cm-1 indicate the presence of a Si-H group in the form of ≡Si-O-OH groups. The correlation between the temperature of caustic fusion and yield follows the equation y = -0.00184x + 1.244 and R2 = 0.9888 indicating that the higher the temperature of caustic fusion the higher the yield of zirconia nanoparticle product. The optimum temperature was found at 450 °C with a yield of 0.42% and a size of 32.984 nm.
Published Version
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