Abstract
As a useful starting material in coating technology and preparation of HAP/polymers composites the platelet Ag/Cu/HAP was prepared using the solid solution of HAP reacting with the mix-solution of silver and copper nitrate. Its composition, microstructure and properties were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and anti-bacterial or bacteriostatic tests. The results demonstrate that the prepared Ag/Cu/HAP crystal is mainly comprised of HAP phase with little whitelockite and silver phosphate, stable up to 600°C and takes a platelet shape. At 750°C, it is partially changed into whitelockite, calcium copper phosphate, silver oxide and silver phosphate. The platelet Ag/Cu/HAP crystal has a preferential orientation of a-axis below 600°C, above which the growth in a-axis is greatly inhibited. The Ag/Cu/HAP has good crystallinity at 600°C and is the most effective powder in resisting bacteria among the HAP powders investigated. The platelet Ag/Cu/HAP crystal can be good starting materials to make antibacterial polymers/HAP composites and HAP coatings.
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Acknowledgments
This work was financially supported by the Key Research Item of Technology of Bureau of Sci. & Technol. of Xi’an city, Shaanxi Province of China (Grant no. GG 200354) and partially supported by the Natural Science Foundation of Shaanxi Province of China (Grant No. 2004B24) and the Research Team Foundation of Shaanxi University of Sci. & Technol.(sust-B104).
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Yang, H., Xiao, B. & Xu, KW. Synthesis and characterization of Ag/Cu/HAP with platelet morphology. J Mater Sci: Mater Med 20, 785–792 (2009). https://doi.org/10.1007/s10856-008-3630-z
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DOI: https://doi.org/10.1007/s10856-008-3630-z