The effect of different pHs, Surfactants and dialyses times on preparation of nano Rod Hydroxyapatite
الموضوعات : Journal of Nanoanalysis
Fateme Mirjalili
1
(Department of Material Engineering, Maybod Branch, Islamic Azad University, Maybod, Iran)
الکلمات المفتاحية: Nano HA rod, precipitation method, XRD analysis,
ملخص المقالة :
Nano HA rod was synthesized by precipitation method using Ca(NO3)24H2O and (NH4)2HPO4 as starting materials and ammonia solution as an agent for pH adjustment. The Ca/P molar ratio was maintained at 1.67. Then, the effect of different pH (4, 6, 8, 10, 11), different surfactants and different times for dialyses on nano HA rod were studied in this study. The samples were characterized by different techniques such as, X-ray diffraction, Fourier transform infrared spectra, and Transmission electron microscopies. The XRD analysis showed that the prepared HA nano rod is fully crystalline. The results showed that the best pH for nano HA rod was 11 and Span 20 as the surfactant had the better effect on dispersion and shape of nano rod. The HA nano-rods had an average diameter of 10 nm and length of 70-80 nm after 12 h of dialyses time.
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