Influence of different concentrations of Cetyltrimethylammonium bromide on morphological, structural and optical properties of Zinc Oxide nanorods

The Zinc Oxide (ZnO) Nanorods were synthesized by hydrothermal method using Zinc Acetate, Hexamethylenetetramin (HMTA) and Cetyltrimethylammonium bromide (CTAB). The pH of the solution was maintained at 11-12 by adding NaOH. The effect of various concentration of CTAB (0.01mM, 0.03mM and 0.05mM) on morphological, structural and optical were investigated using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), UV-Vis spectrophotometer. The functional group analysis of ZnO was carried out using FTIR spectroscopy. It was found that as the concentration of CTAB increases the diameter of the nanorods decreases from 180nm to 80nm. The peak found at 472 cm−1 is the characteristic absorption of the Zn–O bond.