Abstract
The present paper details the surface modification of pure calcium hydroxyl and fluoroapatite (CaHAp and CaFAp) by grafting β-[P2W18O62]6− polyoxometalate (P2W18) with 1:1 and 1:5 mass ratio. The specific surface area (SSA) for pure materials, the X-ray diffraction pattern, the FTIR and the 31P MAS-NMR spectroscopy were used to compare the surface reactivity of CaHAp and CaFAp. These techniques show that the surface of hydroxyapatite is more reactive than that of the fluoroapatite. The reactivity is mainly related to the presence of ≡POH active sites, which are generated by the protonated form of phosphate group (HPO42−).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
