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Title: Hydrothermal synthesis and morphology variation of cadmium hydroxyapatite

Abstract

Cadmium hydroxyapatite (Cd-Hap) crystals were synthesized by hydrothermal method at 200{sup o}C using the solutions of Cd(NO{sub 3}){sub 2}.4H{sub 2}O and (NH{sub 4}){sub 2}HPO{sub 4}. Influences of pH values and reaction time on the crystalline phases and morphology of the products were investigated. In low pH reaction media, Cd{sub 5}H{sub 2}(PO{sub 4}){sub 4}.4H{sub 2}O was formed and a relatively high pH reaction media was necessary to obtain Cd-Hap. Morphology of the Cd-Hap crystals changed from stubby hexagonal prismatic to rod-like in shape with the increase in the pH value. This morphological change was explained by the difference in growth mechanism through intermediate phases, Cd{sub 5}H{sub 2}(PO{sub 4}){sub 4}.4H{sub 2}O in the low pH reaction media and Cd{sub 2}P{sub 2}O{sub 7}.5H{sub 2}O in the high pH reaction media.

Authors:
 [1];  [1];  [1];  [1]
  1. Research Laboratory of Hydrothermal Chemistry, Faculty of Science, Kochi University, 2-5-1 Akebono-cho, Kochi-shi 780-8520 (Japan)
Publication Date:
OSTI Identifier:
20658215
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 177; Journal Issue: 12; Other Information: DOI: 10.1016/j.jssc.2004.09.025; PII: S0022-4596(04)00525-0; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMMONIUM PHOSPHATES; APATITES; CADMIUM COMPOUNDS; CALCIUM NITRATES; CALCIUM PHOSPHATES; CRYSTAL GROWTH; HYDROTHERMAL SYNTHESIS; MORPHOLOGICAL CHANGES; MORPHOLOGY; PH VALUE

Citation Formats

Zhu, Kongjun, Yanagisawa, Kazumichi, Onda, Ayumu, and Kajiyoshi, Koji. Hydrothermal synthesis and morphology variation of cadmium hydroxyapatite. United States: N. p., 2004. Web. doi:10.1016/j.jssc.2004.09.025.
Zhu, Kongjun, Yanagisawa, Kazumichi, Onda, Ayumu, & Kajiyoshi, Koji. Hydrothermal synthesis and morphology variation of cadmium hydroxyapatite. United States. https://doi.org/10.1016/j.jssc.2004.09.025
Zhu, Kongjun, Yanagisawa, Kazumichi, Onda, Ayumu, and Kajiyoshi, Koji. 2004. "Hydrothermal synthesis and morphology variation of cadmium hydroxyapatite". United States. https://doi.org/10.1016/j.jssc.2004.09.025.
@article{osti_20658215,
title = {Hydrothermal synthesis and morphology variation of cadmium hydroxyapatite},
author = {Zhu, Kongjun and Yanagisawa, Kazumichi and Onda, Ayumu and Kajiyoshi, Koji},
abstractNote = {Cadmium hydroxyapatite (Cd-Hap) crystals were synthesized by hydrothermal method at 200{sup o}C using the solutions of Cd(NO{sub 3}){sub 2}.4H{sub 2}O and (NH{sub 4}){sub 2}HPO{sub 4}. Influences of pH values and reaction time on the crystalline phases and morphology of the products were investigated. In low pH reaction media, Cd{sub 5}H{sub 2}(PO{sub 4}){sub 4}.4H{sub 2}O was formed and a relatively high pH reaction media was necessary to obtain Cd-Hap. Morphology of the Cd-Hap crystals changed from stubby hexagonal prismatic to rod-like in shape with the increase in the pH value. This morphological change was explained by the difference in growth mechanism through intermediate phases, Cd{sub 5}H{sub 2}(PO{sub 4}){sub 4}.4H{sub 2}O in the low pH reaction media and Cd{sub 2}P{sub 2}O{sub 7}.5H{sub 2}O in the high pH reaction media.},
doi = {10.1016/j.jssc.2004.09.025},
url = {https://www.osti.gov/biblio/20658215}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 12,
volume = 177,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 2004},
month = {Wed Dec 01 00:00:00 EST 2004}
}