Abstract
Zinc oxide (ZnO) nanocrystals were synthesized under three different molarity concentrations by simple wet chemical method. The prepared ZnO nanocrystals are annealed at 250, 350, and 450°C. The X-ray diffraction results show that the crystallinity has been observed to improve on annealing. The effect of annealing and molarity concentrations on structural and optical property, and surface morphology of ZnO nanocrystals were analyzed. The photocatalytic activity of synthesized ZnO nanocrystal has been investigated for methylene blue dye. The irradiation time, pH conditions of the synthesized ZnO nanocrystals were taken into account for the photocatalytic degradation process.
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