A very simple strategy for preparing Sb 2 O 3 nanostructures under ambient aqueous condition is presented. Sb 2 O 3 nanoparticles with an average size of approximately 44 nm were synthesised using wet chemical method. Senarmontite cubical structure Sb 2 O 3 nanocrystals have been selectively harvested in high yield. The asobtained nanoproducts were characterized by X-ray powder diffraction, Fourier transform infrared (FTIR), ultraviolet-visible near infrared spectroscopy (UV-Vis-NIR) and scanning electron microscopy (SEM) analyses. The size of the Sb 2 O 3 nanoparticles was found to be in the range 44-385 nm from Debye-Scherrer equation. The X-ray density, surface area and porosity of Sb 2 O 3 nanocrystals were found to be 2.969 g/cm 3 , 2.0208 9 10 14 cm 2 /g and 1.0185 9 10-3 m, respectively. From the UV-Vis-NIR analysis, the band gap of Sb 2 O 3 nanocrystals was estimated to be 5.6 eV at 220 nm. The various functional groups in the samples were identified using FTIR spectral studies. The SEM images showed a very spiky morphology. Very small spherical-shaped objects were clearly observed within these structures. The extinction coefficient, real and imaginary part of the dielectric constant, electric susceptibility and the refractive index of Sb 2 O 3 nanocrystals were 7.605 9 10-9 , 0.2851 9 10-17 , 3.747 9 10-8 , 0.48322 and 2.4636, respectively. Keywords Antimony trioxide (Sb 2 O 3) Á PEG-6000 Á X-ray powder diffraction (XRPD) Á Ultraviolet-visible analysis (UV-Vis-NIR) Á Fourier transform infrared analysis (FTIR) Á Scanning electron microscopy (SEM)
In this work we report the successful formation of hexagonal pillar shaped ZnO nanoneedles with high yield and by using simple cheap method with CTAB as the surfactant. SEM and TEM microscopic observation revealed that the ZnO nanorods were smooth and uniform throughout their length and the functional groups in the molecule were identified by FTIR analysis. PL properties of ZnO nannorods were found to be dependent on the growth condition and the resultant morphology revealed that ZnO nanorods were highly transparent in the visible region. .
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