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Issue 6, 2016
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Synthesis of calcium phosphate crystals with thin nacreous structure

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Abstract

Nacre-like structures have attracted great interest in recent years due to their outstanding toughness, stiffness and impact resistance. However, there is a challenge associated with engineering nacre-like calcium phosphate crystals. In this study, thin nacreous-like monetite sheets were synthesized in solutions guided by a surfactant. The influence of temperature, initial pH, Ca/P ratio, stirring time and the concentration of cetyltrimethylammonium bromide (CTAB) on the nacre-like structure has been studied. Findings showed that a nacre-like structure could only be formed at a high temperature (90 °C), high initial pH (11), sufficient stirring time (3 h), and under the presence of CTAB. A small-angle X-ray scattering experiment carried out at a synchrotron radiation facility showed that the distance between nanolayers was around 2.6 nm and TEM confirmed the fine sheet-like structure. The mechanism of the formation the nacre-like structure and its characterization were discussed.

Graphical abstract: Synthesis of calcium phosphate crystals with thin nacreous structure

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Publication details

The article was received on 24 Oct 2015, accepted on 08 Jan 2016 and first published on 11 Jan 2016


Article type: Paper
DOI: 10.1039/C5CE02078F
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Citation: CrystEngComm, 2016,18, 1064-1069
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    Synthesis of calcium phosphate crystals with thin nacreous structure

    S. Chen, K. Grandfield, S. Yu, H. Engqvist and W. Xia, CrystEngComm, 2016, 18, 1064
    DOI: 10.1039/C5CE02078F

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