Sustainable biomaterials: hydrothermal synthesis of carbonated hydroxyapatite from buffalo bone waste
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The synthesis of carbonated hydroxyapatite (CHA) from buffalo bone waste using the hydrothermal method offers asustainable and cost-effective approach for producing biomimetic materials that closely resemble natural bone minerals. Thisstudy explores the impact of hydrothermal temperatures (120 °C, 160 °C, and 200 °C) on the crystallinity, phase composition,and morphology. Buffalo bone waste underwent chemical treatments, was calcined at 1000 °C, and subsequently used as aprecursor for CHA. Characterization using X-ray diffraction (XRD), scanning electron microscopy with energy-dispersiveX-ray spectroscopy (SEM-EDX), and Fourier-transform infrared spectroscopy (FTIR) revealed key findings, XRD analysisindicated that higher hydrothermal temperatures improve crystallinity, with sharper diffraction peaks at 200 °C, especiallyafter 24-hour aging. SEM analysis showed morphological differences, with CHA synthesized at 200 °C exhibiting the densest,most uniform structure, whereas lower temperatures resulted in more porous structures with incomplete crystallization. FTIRspectra confirmed carbonate substitution in the hydroxyapatite lattice, while EDX analysis demonstrated a composition ofcalcium, phosphate, and trace elements, aligning with natural bone composition. This approach highlights CHA's potentialas a biowaste-derived material for bone-related biomedical applications.
Abstract
The synthesis of carbonated hydroxyapatite (CHA) from buffalo bone waste using the hydrothermal method offers asustainable and cost-effective approach for producing biomimetic materials that closely resemble natural bone minerals. Thisstudy explores the impact of hydrothermal temperatures (120 °C, 160 °C, and 200 °C) on the crystallinity, phase composition,and morphology. Buffalo bone waste underwent chemical treatments, was calcined at 1000 °C, and subsequently used as aprecursor for CHA. Characterization using X-ray diffraction (XRD), scanning electron microscopy with energy-dispersiveX-ray spectroscopy (SEM-EDX), and Fourier-transform infrared spectroscopy (FTIR) revealed key findings, XRD analysisindicated that higher hydrothermal temperatures improve crystallinity, with sharper diffraction peaks at 200 °C, especiallyafter 24-hour aging. SEM analysis showed morphological differences, with CHA synthesized at 200 °C exhibiting the densest,most uniform structure, whereas lower temperatures resulted in more porous structures with incomplete crystallization. FTIRspectra confirmed carbonate substitution in the hydroxyapatite lattice, while EDX analysis demonstrated a composition ofcalcium, phosphate, and trace elements, aligning with natural bone composition. This approach highlights CHA's potentialas a biowaste-derived material for bone-related biomedical applications.