Abstract
Abstract
A comparative study on eggshell powder and commercially available CaCO3 has been conducted. The Raman spectra of eggshell powder show the bands of the calcite phase. However, the bands of eggshell powder are more intense than the conventional CaCO3. The peaks of eggshell powder also show some blue shift, which indicates that the calcite phase of eggshell powder is more Raman sensitive than the conventional CaCO3. Additionally, conventional CaCO3 also exhibits some extra bands of the aragonite phase. The photoluminescence spectra of eggshell powder show a narrow band and merged band than the commercially used CaCO3. This study indicates that eggshells could be a good and pure alternative for commercially available calcium carbonate.
Subject
Computer Science Applications,History,Education
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