Influence of Zinc Substitution on Hydroxyapatite Structure Prepared by Chemical Precipitation Method

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The zinc (Zn) substituted hydroxyapatite were synthesized using a chemical precipitation method. The chemical precursors were prepared from di-ammonium hydrogen orthophosphate, calcium oxide (CaO) derived from chicken eggshell and zinc nitrate (Zn(NO3)2). The Zn(NO3)2 contents in the prepared samples were varied from 1 to 25 %wt of CaO. The Zn substituted hydroxyapatite were heated at the various temperatures from 200 to 1300 °C in the furnace with an incremental temperature of 100 °C. The crystal structure, function group and morphology of sample were analyzed by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM), respectively. The results show that the hydroxyapatite doped Zn was a hydroxyapatite phase as well as pure hydroxyapatite. The crystalline size of sample decreased with increasing the Zn content. And, the crystallinity of hydroxyapatite phase was increased following by increasing heat treatment temperature. However, the amount of Zn has the effect on phase transformation of hydroxyapatite phase after heat treatment. Zn concentration accelerates hydroxyapatite transforms to β-tricalcium phosphate phase.

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Edited by:

Dr. Noppakun Sanpo, Dr. Jirasak Tharajak and Dr. Paisan Kanthang

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3-7

Citation:

N. Nuamsrinuan et al., "Influence of Zinc Substitution on Hydroxyapatite Structure Prepared by Chemical Precipitation Method", Applied Mechanics and Materials, Vol. 879, pp. 3-7, 2018

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March 2018

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$38.00

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