Hydrothermal conversion of calcite crystals to hydroxyapatite

被引：116

作者：

Yoshimura, M ^{[1
]}

Sujaridworakun, P ^{[1
]}

Koh, F ^{[1
]}

Fujiwara, T ^{[1
]}

Pongkao, D ^{[1
]}

Ahniyaz, A ^{[1
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Ctr Mat Design, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2004年 / 24卷 / 04期

关键词：

hydroxyapatite; calcium carbonate; hydrothermal;

D O I：

10.1016/j.msec.2004.01.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydroxyapatite (HAp) has been successfully synthesized by hydrothermal treatment of calcite crystals in H3PO4 suspensions at 120 or 180 degreesC. Synthesis of HAp crystals under different H3PO4 concentrations and time conditions were studied. The results showed that HAp can be produced by the hydrothermal conversion of calcite crystals in the presence of a neutral suspension consisted of Ca 50 mM and PO4 60 mM, at 120 and 180 degreesC for 6 h. Unreacted CaCO3 remained when PO4 concentration was less than this at lower temperature. The major formation mechanism of HAp seems to be dissolution/precipitation. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：521 / 525

页数：5

共 23 条

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