Synthesis and thermal stability of selenium-doped hydroxyapatite with different substitutions

Yonghui LIU, Jun MA, Shengmin ZHANG

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Front. Mater. Sci. ›› 2015, Vol. 9 ›› Issue (4) : 392-396. DOI: 10.1007/s11706-015-0313-9
RESEARCH ARTICLE

Synthesis and thermal stability of selenium-doped hydroxyapatite with different substitutions

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Abstract

Selenium (Se) plays a specific role in human health, especially for its anti-tumor effect. Incorporation of selenium into biocompatible hydroxyapatite (HAP) may endow the materials with novel characteristics. In the current work, a series of selenium-doped hydroxyapatite (Se-HAP) nanoparticles with different Se/P ratios were synthesized by a modified chemical precipitation. It was revealed that the powders with/without heat-treatment were nano-sized needle-like HAP while the heat-treated samples have high crystallinity. The addition of selenium decreases the crystallinity of the synthesized apatite, and also takes a negative effect on the thermal stability of the as-prepared powders. The Se-HAP nanoparticles with Se/P molar ratio not more than 5% sintered at 900°C can achieve good crystallinity and thermal stability.

Keywords

selenium / hydroxyapatite / thermal stability / crystallinity

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Yonghui LIU, Jun MA, Shengmin ZHANG. Synthesis and thermal stability of selenium-doped hydroxyapatite with different substitutions. Front. Mater. Sci., 2015, 9(4): 392‒396 https://doi.org/10.1007/s11706-015-0313-9

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Acknowledgements

This work was supported by the National Basic Research Program of China (Grant No. 2012CB933601) and the National Natural Science Foundation of China (Grant Nos. 51202075, 81071263 and 81461148032).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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