Synthesis and characterization of arsenate/phosphate hydroxyapatite solid solution

Synthesis and characterization of arsenate/phosphate hydroxyapatite solid solution
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砷酸盐/磷酸盐羟基磷灰石固溶体的合成与表征

DOI:
10.1016/j.matlet.2009.02.036
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发表时间:
2009-05
期刊:
影响因子:
3
通讯作者:
Liu, Huili
Liu, Huili
中科院分区:
材料科学3区
文献类型:
--
作者:
Long, Fei;Zhang, Xuehong;Qian, Meifang;He, Na;Zhu, Yinian;Liu, Huili

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采用水沉淀法直接制备了一系列砷酸盐取代羟基磷灰石。元素分析、XRD、FT-IR、SEM等表征研究证实了砷酸盐/磷酸羟基磷灰石固溶体的形成。XRD分析表明,单胞a和c参数并不像维加德定律所期望的那样随着取代度的变化而平滑变化。As/(P+As)=0.46 ~ 1.0的固体为典型针状结晶;As/(P+As)= 0-0.46的大表格。在FT-IR光谱中,随着砷酸盐比例的增加,磷酸盐峰的面积逐渐被抑制,而砷酸盐峰的面积逐渐增大。
A series of arsenate substituted hydroxyapatite was directly prepared through aqueous precipitation method. Characterization studies from elemental analysis, XRD, FT-IR spectra and SEM have confirmed the forming of the arsenate/phosphate hydroxyapatite solid solutions. The XRD analysis indicated that the unit cell a and c parameters did not vary smoothly with the degree of substitution as expected by the Vegard's Law. The solids with As/(P+As)=0.46–1.0 were typically needle-like crystals; those with As/(P+As)=0–0.46 large tabular. In FT-IR spectra, the area of the phosphate peak was gradually suppressed and that of the arsenate peak increased as the proportion of the arsenate increased.
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