EFFECT OF REACTION TIME ON THE GROWTH OF HYDROXYAPATITE CRYSTAL NANO-RODS SYNTHESIS FROM SHELLS OF YELLOW FLOWER CLAM BY HYDROTHERMAL METHOD

Nguyễn Ngọc Minh

doi:10.34238/tnu-jst.12437

EFFECT OF REACTION TIME ON THE GROWTH OF HYDROXYAPATITE CRYSTAL NANO-RODS SYNTHESIS FROM SHELLS OF YELLOW FLOWER CLAM BY HYDROTHERMAL METHOD

About this article

Received: 31/03/25 Revised: 14/06/25 Published: 15/06/25

Authors

Nguyen Ngoc Minh , School of Materials Science and Engineering - Hanoi University of Science and Technology

Abstract

Hydroxyapatite is one of the important minerals and it is applied widely in biomedical fields because of its high biocompatibility with living organisms. In this study, hydroxyapatite crystal nano-rods were synthesized using a hydrothermal method, utilizing the calcium-rich source of shells of yellow flower clam. The effect of hydrothermal reaction time on the size of the hydroxyapatite crystal nanorods was evaluated in the range of 2 hours to 12 hours at a reaction temperature of 140 ^oC. The morphology and size of the nanorods were determined using Field emission scanning electron microscopy, while the phase composition of the hydroxyapatite product was identified by X-ray diffraction and Fourier transform infrared spectroscopy was used to determine the chemical bonding groups present in the resulting product. The results showed that the hydrothermal reaction time affected the size and length of the obtained hydroxyapatite nanorods. Under the experimental conditions, with the aim of synthesizing hydroxyapatite crystal nano-rods for applications in coating fabrication on biomedical alloys, the minimum time required to achieve uniformity among the nano-rods was 10 hours. This result help guide the timeframe for future syntheses of similar hydroxyapatite.

Keywords

Hydroxyapatite; Yellow flower clam; Biomaterials; Nano-rod; Hydrothermal method

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DOI: https://doi.org/10.34238/tnu-jst.12437

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