Preparation Calcium Oxide From Chicken Eggshells

摘要

The preparation of metal oxide CaO from chicken eggshell has been carried out by decomposition at various temperatures 600, 700, 800, 900, and 1000oC. The metal oxide CaO was characterized using XRD. Furthermore, The optimum temperature for preparation of CaO was determined based on the XRD pattern, then the characterization of CaO was extended using FT-IR spectrophotometer and BET analysis. The results show that the optimum temperature for preparation of CaO from chicken eggshell is 900oC with peak of 2? at 32.3o, 37.4o, 53.9o, 64.2o and 67.5o, respectively. The FT-IR spectrums show the unique vibration for Ca-O at 393 cm-1. The BET analysis show that CaO has surface area 68 m2/g with pore volume 1.65 cm3/g and pore size 6.6 nm which can be classified as mesoporous.