A Facile Route to the Synthesis of Hydroxyapatite/Wollastonite Composite Powders by a Two-Step Coprecipitation Method

作者：Morsy R^*; Abuelkhair R; Elnimr T

来源：Silicon, 2017, 9(4): 637-641.

DOI：10.1007/s12633-015-9339-y

• Bioceramics
• Composites
• Hydroxyapatite
• Wollastonite
• Coprecipitation method

A facile and fast method has been developed to synthesize pure hydroxyapatite/wollastonite (HAp/WT) composite powders of different weight ratio. HAp/WT composites could be easily prepared by a two-step coprecipitation route and subsequent heating of the precipitant for 2 h, using Ca(OH)(2) and H3PO4 as starting materials in the first step then adding Ca(NO3)(2)center dot 4H(2)O and Na2SiO3 center dot 9H(2)O in the second step. XRD, FT-IR and XRF analyses confirmed the synthesis of pure HAp/WT composite powders. SEM data showed that the synthetic composites have agglomerated particles consisting of small particles with size less than 1 mu m. The results indicates that this route for synthesis of HAp/WT composites is promising for medical applications such as bone repair substitutes and drug carriers.

• 出版日期2017-7