Abstract
The preparation of CaO from golden snail ( Pomacea canaliculata) and lion snail ( Babylonia spirata ) through decomposition at various temperature i.e 700 o , 800 o , 900 o and 1000 o C during 3 hours has been carried out. Calcium oxide from decomposition was characterized using X-Ray diffractometer. Furthermore, the characterization was continued using FT-IR spectrophotometer and determination of surface area using BET analysis. The results showed that the optimum temperature for preparation of CaO from golden snail and lion snail at 900 o C with 2q values are: 32.2° , 37.4 o , 54 o , 64.2 o , 67.3° and 32.4°, 37.5°, 67.5 °, respectively. FT-IR spectra showed characteristic vibrations for the Ca-O in the sample golden snail and lion snail combustion products at a temperature of 900 o C. Ca-O absorption of golden snail samples in the wavenumber around 362.62 cm -1 and lion snail seen in wavenumber around 384.76 cm -1 indicating the presence of Ca-O vibration of the metal oxide of preparation. Golden snail and the lion snail combustion at 900 o C temperature of each sample which has a surface area of 20.495 m 2 /g, while the lion snail 17.308 m 2 /g. The pore diameter of golden snail 3.753 nm and 11.319 nm of lion snail. All CaO can be categorized as mesoporous material. Keywords: golden snail, lion snail, decomposition, CaO
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