期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 42, 期 -, 页码 578-586出版社
ELSEVIER
DOI: 10.1016/j.msec.2014.05.079
关键词
Carbonated fluor/hydroxyapatite; Hydrothermal synthesis; FTIR; Thermal decomposition; XRD Rietveld structure refinement
资金
- Ministry of Science, Education and Sports of the Republic of Croatia [125-1252970-3005]
Phase composition, crystal structure and morphology of carbonated fluor/hydroxyapatite synthesized hydrothermally from aragonitic cuttlefish bones were studied by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) combined with energy dispersive X-ray spectroscopy (EDS). The product of synthesis has been characterized as carbonated fluor/hydroxyapatite with carbonate incorporated inside channel (A-type) and substituted for the PO43- group (B-type). The vibration band at 874 cm(-1) assigned to bending (v(2)) mode undoubtedly confirmed carbonate substituted for PO43- group, while the band at 880 cm(-1) was attributed to A-type carbonate substitution. The additional sharp and intense band at 865 cm(-1) considered as non-apatitic carbonate substitution is not assigned with certainty so far. Evolution of CO2 from tetrahedral (PO43-) sites with the increase in heat-treatment temperature is evident by the changes in tetrahedral bond lengths and angles, as obtained by the Rietveld structure refinement. Also, changes in the isotropic temperature parameters for the 2a site point to A-type carbonate incorporation as well. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据