Synthesis and characterization of hydroxyapatite from cow bone / Asteryssaphire M. Cabulisan
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TextPublication details: City of Batac : MMSU, 2024Description: xv, 45 leaves : 29 cmSummary: There is a growing demand for hydroxyapatite (HAp) especially in medical
applications. However, green production of HAp is a challenge. In this research a
natural (HAp) was extracted from raw cow bone by heat treatment using calcination
method at in the range of 500℃ to 900℃. Pretreatment of the raw cow bone was
effectively achieved by boiling through pressure cooker for a total of 5 h, and acetone
cleaning through ultrasonic cleaner. After calcination at different temperature, the
obtained HAp was characterized by x-ray fluorescence, x-ray diffraction (XRD), and
scanning electron microscope (SEM). Removal of organic portion from heat treatments
was confirmed by XRF analysis and revealed the main component of hydroxyapatite
the Ca and P. XRD results showed that crystallinity of HAp phase after calcination
above 600 ℃ and the crystal size has been found to increase with increasing
temperature of calcinations. In addition, SEM results confirmed the rod structure
characteristic of natural HAp, prominently observed at 800℃ and 900℃. The natural
HAp obtained by calcining at 900 °C revealed highly desirable properties in term of
morphology, composition of element and crystallinity. However, Ca and P content
which corresponded to the Ca/P molar ratio is nonstoichiometric hydroxyapatite but
still acceptable for biomedical application. Moreover, production of HAp is still
possible even without the incorporation of ultrasonication.
| Item type | Home library | Shelving location | Call number | Status | Notes | Date due | Barcode |
|---|---|---|---|---|---|---|---|
| Thesis/Dissertation | MMSU Main Library | Theses and Dissertation Section | Available | Room Use Only | UTHESIS-6949 |
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UTHESIS (Bachelor of Science in Ceramic Engineering)
Bibliography : leaves 29-30
There is a growing demand for hydroxyapatite (HAp) especially in medical
applications. However, green production of HAp is a challenge. In this research a
natural (HAp) was extracted from raw cow bone by heat treatment using calcination
method at in the range of 500℃ to 900℃. Pretreatment of the raw cow bone was
effectively achieved by boiling through pressure cooker for a total of 5 h, and acetone
cleaning through ultrasonic cleaner. After calcination at different temperature, the
obtained HAp was characterized by x-ray fluorescence, x-ray diffraction (XRD), and
scanning electron microscope (SEM). Removal of organic portion from heat treatments
was confirmed by XRF analysis and revealed the main component of hydroxyapatite
the Ca and P. XRD results showed that crystallinity of HAp phase after calcination
above 600 ℃ and the crystal size has been found to increase with increasing
temperature of calcinations. In addition, SEM results confirmed the rod structure
characteristic of natural HAp, prominently observed at 800℃ and 900℃. The natural
HAp obtained by calcining at 900 °C revealed highly desirable properties in term of
morphology, composition of element and crystallinity. However, Ca and P content
which corresponded to the Ca/P molar ratio is nonstoichiometric hydroxyapatite but
still acceptable for biomedical application. Moreover, production of HAp is still
possible even without the incorporation of ultrasonication.
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