Abstract
Calcium oxide (CaO) nanoparticles were synthesized from waste eggshells through a combined process of ball milling and calcination. Utilizing waste eggshells as the precursor and using ball milling, a sustainable, cheap, and convenient process makes this experiment sustainable. The eggshells were characterized by Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), Fourier-Transform Infrared Spectroscopy (FTIR), and X-ray Diffraction (XRD) and the calcined eggshell powder was characterized by SEM and FTIR. From this study, the synthesis of CaO nanoparticles, identifying the yield of CaO from eggshells, observing the temperature effect on calcined eggshell powder were observed, and applying CaO nanoparticles in seed priming is expected.
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