Abstract
This paper studied the synthesis of calcium oxide (CaO) from snail shells by calcination, crushing, and grinding. Then, the sample was analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), specific surface area (BET), and particle size. The XRD result showed obtained CaO content of 98.7%. FTIR spectrum analysis revealed a sharp band appeared at 3647 cm-1 due to the formation of Ca(OH)2 and the band at 1419 cm-1 was the characteristic peak of CaO. SEM images supplied a fairly uniform crystal structure and high porosity capillary. TGA analysis also gave a clear mass loss in two temperature ranges from 320-500oC and 515-780oC. At the same time, our results are compared with previous related studies.
Published Version
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