Synthesis of calcium phosphate crystals with thin nacreous structure
2016 (English)In: CrystEngComm, ISSN 1466-8033, E-ISSN 1466-8033, Vol. 18, no 6, 1064-1069 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 18, no 6, 1064-1069 p.
IdentifiersURN: urn:nbn:se:kth:diva-180732DOI: 10.1039/C5CE02078FISI: 000369609800025ScopusID: 2-s2.0-84956926056OAI: oai:DiVA.org:kth-180732DiVA: diva2:896570
QC 201603042016-01-212016-01-212016-03-04Bibliographically approved