For the first time, nanostar of SrO was prepared by using PEG400 assisted process. Also PbO, NiO nanoparticle and SnO2 microsphere have been synthesized by this method. In this study PEG400 used as template to control crystal growth, morphology and the sizes of nanoparticles. The products were characterized by SEM, FT-IR, UV-Vis spectrum and nanostar of SrO was characterized by X-ray diffraction (XRD). Results of the XRD analysis of SrO shows the crystal structure. The UV-Vis spectra of SrO, PbO, NiO and SnO2 illustrate strong absorption peaks at 203, 208, 354 and 382 nm respectively. The SEM photographs of SrO shows nanostar morphology with diameters ranging 412 nm. The SEM photographs of PbO, NiO and SnO2 show granular morphology with the sizes about 48 nm, 35 nm and 44 μm, respectively. This article offers a simple, low cost and easy method to synthesis SrO, PbO, NiO and SnO2. This method can be applied for synthesis of different metal oxides.

Keywords: Nanoparticles, PEG400, Nanostar, morphology, Assisted route.