Fourier Transform Infrared Spectroscopy Study of Deuteration of Calcium Hydroxyapatite Particles
Fourier Transform Infrared Spectroscopy Study of Deuteration of Calcium Hydroxyapatite Particles
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羟基磷灰石钙颗粒氘化的傅里叶变换红外光谱研究
DOI：
10.1021/la0004855
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
K. Kandori
中科院分区：
文献类型：
--
作者：
T. Ishikawa;Akihiro Teramachi;Hidekazu Tanaka;A. Yasukawa;K. Kandori
采用原位傅里叶变换红外光谱法研究了合成羟基磷灰石（CaHap）的氘化过程及氟化对其氘化的影响，以阐明CaHap颗粒的表面结构。氟化反应降低了CaHap柱中OH-离子的氘化，表明在以F-离子取代OH-离子关闭入口的柱中不会发生氘化。在氘化CaHap上观察到的2680 cm-1波段被分配到与CO2分子反应的表面OD离子上。2633-cm-1波段不受CO2吸附的影响。氟化CaHap不产生表面OD波段，因为表面OH-离子被F-取代。
The deuteration of synthetic calcium hydroxyapatite (CaHap) and the effect of fluoridation on the deuteration were investigated by in situ Fourier transform infrared spectroscopy to elucidate the surface structure of CaHap particles. The deuteration of column OH- ions of CaHap was reduced by the fluoridation, indicating that the deuteration does not happen in the columns of which the entrance is closed with F- ions replacing OH- ions. The 2680-cm-1 band observed on the deuterated CaHap was assigned to the surface OD- ions which react with CO2 molecules. The 2633-cm-1 band due to the column OD- ions was not influenced by CO2 adsorption. The fluoridated CaHap did not give rise to the surface OD- band, because the surface OH- ions were replaced with F-.