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Jurnal Bios Logos
Published by Universitas Sam Ratulangi
ISSN : 20889569     EISSN : 26563282     DOI : https://doi.org/10.35799/jbl.11.2.2020.28153
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
JURNAL BIOS LOGOS is the journal published by Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The aims of the journal are to publish original research papers and article review in biology science i.e. botany, zoology, molecular biology, microbiology, ecology, diversity and conservation, taxonomy and biogeography. BIOS LOGOS is published two times per year (February and August)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 11 Documents
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Search results for , issue "Vol. 13 No. 1 (2023): JURNAL BIOS LOGOS" : 11 Documents clear
Synthesis and Characterization of Hydroxyapatite from Polymesoda placans Shell using Wet Precipitation Method Charlena; Irma Herawati Suparto; Daniel Putra Oktavianus Laia
JURNAL BIOS LOGOS Vol. 13 No. 1 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i1.47454

Abstract

Hydroxyapatite (HAp) is a bioceramic material that has chemical components similar to bone and teeth. Further development and exploration of calcium sources continued to be done to synthesize HAp. The purpose of this research was to synthesize HAp from the shell of Polymesoda placans using the wet precipitation method. The synthesis used in this study was by reacting calsium hydroxide from the shells and diammonium hydrogen phosphate as a phosphate precursor with the sintering temperatures of 600, 800, 1000, and 1100 oC and pH 9, 10 dan 11. Based on the X-ray diffraction spectrum, the best sintering temperature was 1000 oC with pH of 10-11 because it revealed the highest crystallinity (90.1 %). Functional groups analyzed by Fourier transform infrared showed that there were PO­43-, OH- , and CO32- groups in the HAp. Scanning electron microscope analysis showed uniform granule particles with particle sizes of 0.3-1.6 µm.

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