Synthesis and characterization of nanoporous hydroxyapatite using cationic surfactants as templates

被引：78

作者：

Li, Yanbao ^{[1
]}

Tjandra, Willana ^{[1
]}

Tam, Kam C. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore MIT Alliance, Singapore 639798, Singapore

来源：

MATERIALS RESEARCH BULLETIN | 2008年 / 43卷 / 8-9期

关键词：

microporous materials; nanostructures; microstructure; phase equilibria;

D O I：

10.1016/j.materresbull.2007.08.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoporous hydroxyapatite was synthesized utilizing cationic surfactants as templates. The effects of cetyltrimethylammonium bromide and reaction temperatures on the phase and morphology of HA were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). The thermal stability of nanoporous structures was studied by XRD and thermal analyzers (TGA/DTA), while the pore structure of HA was observed using high resolution TEM. It was found that the pore size was about 1 nm, and the pore structure of HA was thermally stable up to 700 T and the pore size did not change with reaction temperature and CTAB:PO43- ratio. The possible formation mechanism of nanoporous structure was proposed. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2318 / 2326

页数：9

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