Atika Ahab, Yulin Dayanti, Since Bausele, Nina Siti Aminah, Ikah Ning Prasetiowati
Biogenic calcium carbonate (CaCO3) has been successfully produced from shells of snails (Achatina fulica). The change in natural CaCO3 and its crystal properties after calcination treatment were analysed using an X-Ray Diffraction (XRD), a Fourier Transform Infra-Red (FTIR) spectroscopy, a Scanning Electron Microscopy (SEM), and an Energy Dispersive X-Ray (EDX) analyser. The XRD analysis showed the original sample contained aragonite crystal, whereas after the calcination process for 2 hours at 500 °C, it was transformed into calcite crystal. This transformation was also confirmed by the FTIR spectrums showing the presence of aragonite in the shells and calcite after calcination. The calcination process altered the chemical compositions of the snail shell which also revealed in the EDX spectrums. It showed the aragonite sample contained more calcium and less oxygen than calcite. Therefore, the snail shell provided the natural resource of aragonite CaCO3 which should be potential as a precursor in the large-scale synthesis of aragonite nano and microparticles. © 2023 Author(s).
Physics Department, Faculty of Science and Technology, University of Nusa Cendana, Jl. Adisucipto, Penfui, NTT, Kupang, Indonesia; Chemistry Department, Faculty of Science and Technology, University of Nusa Cendana, Jl. Adisucipto, Penfui, NTT, Kupang, Indonesia; Physics Department, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesha 10, Bandung, Indonesia; Physics Department, Faculty of Mathematics and Natural Sciences, Sumatera Institute of Technology, Jalan Terusan Ryacudu, Jati Agung, Lampung Selatan, Lampung, Indonesia
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