Abstract :

This Q4 project set out to describe the impact of solution pH and calcination temperature on the structure, chemical content, and particle/crystallite size of hydroxyapatite (Hap). Powders of non-stoichiometric Hap (nap) with a zinc percentage of 4 at.% were produced using a solution-precipitation technique. X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) were used to characterise the impact of pH (values: 9 and 10.5) and two calcination temperatures (550 and 1000C) on chemical composition, molecule internal bonds, particle, and crystallite size of the synthesised powders. Incorporating zinc cations into the atomic structure of Hap led to the formation of a low crystalline single phase of nap. As the pH was lowered to 10.5, powders with finer particle and crystallite sizes began to develop. Decomposition of zinc-doped nap into the biodegradation-regulating -tricalcium-phosphate and tri