期刊
CERAMICS INTERNATIONAL
卷 41, 期 2, 页码 2209-2213出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.10.021
关键词
Hydroxyapatite; Hollow microspheres; Microwave; Ultrafast synthesis; Hard-template transformation
资金
- Special Foundation for Scientists of Guizhou Province [KY[2012]102, TZJF-2011-10]
Hollow nano-structured hydroxyapatite [Ca-10(PO4)(6)(OH)(2), HAp] microspheres were rapidly synthesized via microwave transformation of a sacrificial hard-template of similarly structured calcium carbonate (CaCO3) hollow microspheres in Na3PO4 aqueous solution. Results showed that the microwave process significantly increased transformation efficiency. Pure hollow HAp microspheres could be obtained within ultra-shortperiod of 30 min via the microwave transformation process, in comparison to over 48 h in the traditional hydrothermal transformation method. These studies suggest that the microwave assisted hard-template transformation process is an effective approach to synthesize HAp with high efficiency. The resulting hollow nano-structured HAp microspheres may have applications in drug-delivery and serve as materials for chemical and environmental applications. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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