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Article Dans Une Revue Journal of Solid State Chemistry Année : 2012

Synthesis and characterization of nanoapatites organofunctionalized with aminotriphosphonate agents

Sanaa Saoiabi
  • Fonction : Auteur
Sanae El Asri
  • Fonction : Auteur
Sylvie Masse
Jerome L. Ackerman
  • Fonction : Auteur

Résumé

Organofunctionalized apatite nanoparticles were prepared using a one step process involving dissolution/precipitation of natural phosphate rock and covalent grafting of nitrilotris(methylene)triphosphonate (NTP). The synthesized materials were characterized by Brunauer-Emmett-Teller (BET) surface measurement, thermogravimetry, inductively coupled plasma emission spectroscopy (ICP-ES), elemental analysis, multinuclear solid state cross-polarization/magic angle spinning (CP/MAS) and single-pulse NMR spectroscopy, transmission electron microscopy (TEM) and energy dispersive X-ray analysis (EDXA). After grafting BET measurements yielded particle specific surface areas ranging from 88 to 193 m(2) g(-1) depending on the grafted phosphonate. The results show that the surfaces of the nanoapatite particles can be covered with functional groups bound through a variable number of R-P-O-Ca bonds to render them organoapatites. Published by Elsevier Inc.

Domaines

Matériaux

Dates et versions

hal-01461425 , version 1 (08-02-2017)

Identifiants

Citer

Sanaa Saoiabi, Sanae El Asri, Abdelaziz Laghzizil, Sylvie Masse, Jerome L. Ackerman. Synthesis and characterization of nanoapatites organofunctionalized with aminotriphosphonate agents. Journal of Solid State Chemistry, 2012, 185, pp.95-100. ⟨10.1016/j.jssc.2011.10.031⟩. ⟨hal-01461425⟩
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