Abstract
ZnO nanoparticles (ZnO-NPs) were synthesized by precipitation method in three different way i.e. synthesis through mixing the of 1M of zinc sulphate [ZnSO4] and 2M of potassium hydroxides [KOH] (M1), through mixing of 0.2M of zinc nitrate [Zn(NO3)2] and 0.4M of potassium hydroxide [KOH] (M2), and by 0.5M of zinc nitrate Zn(NO3)2] and 1M of urea [CO(NO2)2] (M3). The synthesized particles were characterized by energy dispersive x-ray spectrometry (EDaX) and UV-Vis spectroscopy. The results of EDaX found that average elemental analysis of nano ZnO particles which were 74.86 weight % and 45.88 atomic % of ZnO-NPs in M1; 72.11 weight % and 45.51 atomic % in M2, and 75.04 weight % and 45.69 atomic % of ZnO-NPs in M3. The optical characterizations of the sample were recorded on UV-Vis indicated three various sample (M1) red color peck; (M2) yellow color peck and (M3) green color peck of synthesis of ZnO-NPs. The band gap energy of the sample is measured by the linear portion of the graph which was confirmed by the presence of excitonic absorption at 380 nm.
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