Abstract
Pure zirconium oxide (ZrO 2) nanocrystals with diameters 10–30 nm are fabricated from bis-aqua, tris-acetylacetonato zirconium(IV) nitrate; [Zr(acac) 3(H 2O) 2](NO 3); by thermal decomposition. The different combinations of oleylamine, or polyethyleneglycol (PEG) and triphenylphosphine, were added as surfactants to control the particle size. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet–visible (UV–Vis) spectroscopy, photoluminescence spectroscopy (PL), Fourier transform infrared (FT-IR) spectroscopy and X-ray photoelectron spectroscopy (XPS) to depict the phase and morphology. The synthesized ZrO 2 nanoparticles have a cubic structure. The FT-IR spectrum showed the purity of obtained ZrO 2 nanocrystals with cubic phase. The UV–Visible absorption peak for ZrO 2 was observed at 233 nm (5.3 eV in photon energy). The band at 363 nm for cubic ZrO 2 nanocrystals was found.
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