Synthesis, liquid – Liquid extraction and deposition of hydroxyapatite nanorod composites

[Display omitted] •Hydroxyapatite nanorods were prepared by chemical precipitation.•Liquid-liquid extraction method has been developed for agglomerate free processing.•Advanced extractors showed strong adsorption on hydroxyapatite nanorods.•Adsorption resulted from bidentate or tridentate bonding of...

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Bibliographic Details
Published in:Materials letters 2017-08, Vol.201, p.140-143
Main Authors: Clifford, A., Ata, M.S., Zhitomirsky, I.
Format: Article
Language:English
Subjects:
Adsorption
Agglomeration
Butanol
Chemical precipitation
Dispersion
Extraction
Extraction processes
Extractors
Hydroxyapatite
Liquid-liquid extraction
Materials science
Nanomaterials
Nanorod
Nanorods
Particulate composites
Polymer films
Polymethylmetacrylate
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Summary:[Display omitted] •Hydroxyapatite nanorods were prepared by chemical precipitation.•Liquid-liquid extraction method has been developed for agglomerate free processing.•Advanced extractors showed strong adsorption on hydroxyapatite nanorods.•Adsorption resulted from bidentate or tridentate bonding of the extractors.•Composite coatings were prepared, containing hydroxyapatite and biopolymer. Hydroxyapatite (HA) nanorods were prepared by a wet chemical precipitation method. Lauryl gallate (LG) and hexadecylphosphonic acid (HDPA) showed strong adsorption on HA and allowed for the transfer of the synthesized HA nanorods from the aqueous to n-butanol phase at the interface of the two immiscible liquids. The extracted non-agglomerated HA particles were used for the fabrication of composite HA-polymer films. In this approach, the problems related to particle agglomeration during the drying stage were avoided. The analysis of the adsorption mechanisms indicated that LG and HDPA are promising extractors for agglomerate free processing of nanomaterials in the liquid-liquid extraction method.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2017.05.006