a-Zirconium phosphate (ZrP) nanoparticles were functionalized through a two-step ion exchange and self-assembly procedure. Metal ions, such as Hf(IV) and Sn(IV) , were deposited on the surface of ZrP nanoparticles through an ion exchange reaction with the protons of the surface phosphate groups followed by complexing the metal ions with phosphonic acid ligands. The presence of the metal ion layer and further organic functionalization was verified by powder X-ray diffraction, electron microprobe, XPS, MAS/CP NMR, FTIR, and TGA. It was found that use of bisphosphonic acids led to the ability to build multilayer materials from the nanoparticle surface in a layer-by-layer fashion. This approach allows designable architectures to be built on the nanoparticle surface; the synthesis and applications of these materials will be discussed.

Designable architectures on nanoparticle surfaces: Zirconium phosphate nanoplatelets as a platform for tetravalent metal and phosphonic acid assemblies

247th National Meeting (2014)

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