Sodium-doped Hydroxyapatite Nanopowder through Sol-gel Method:Synthesis and Characterization
(0) The nanocrystalline HA powders were produced through sol-gel method which employed calcium nitrate tetrahydrate Ca(NO3)2.4H2O and diammonium hydrogen phosphate (NH4)2HPO4 as calcium and phosphorous precursors.Sodium ion (Na+) is one of the trace elements found in biological apatite and believed to have important effect in its performance.The concentrations of sodium dopant were varied from 0 mol% until 15 mol% by using sodium nitrate (NaNO3) as the source of dopant.Characterization of nanopowders was investigated by using X-ray diffraction (XRD),Fourier transform infra red (FTIR) and Transmission Electron Microscope (TEM).XRD analysis revealed that there are no other phases exist in the synthesized powder,evinced single phase of HA and a trend shows an increase of cristallinity with increase of sodium dopant concentration.While the TEM images showed evidence that the particle sizes were bigger with the increasing sodium concentration,showing the effect of sodium dopant on the densification of the powder.
Sol-gel Hydroxyapatite Nanocrystalline Sodium Dopant
Erlani Pusparini Iis Sopyan Mohd Hamdi Ramesh Singh
Department of Engineering Design & Manufacture,Faculty of Engineering,University of Malaya,Kuala Lum Department of Manufacturing and Materials Engineering,Faculty of Engineering,International Islamic U Department of Engineering Design & Manufacture,Faculty of Engineering,University of Malaya,Kuala Lum
国际会议
大理
英文
128-132
2011-08-18（万方平台首次上网日期，不代表论文的发表时间）