One-dimensional ZnO nanoparticles were successfully synthesized from Zn(CH(3)COO)(2)center dot 2H(2)O as well as CTAB-assisted NaOH and CTAB-assisted HMTA solutions. The entire calcined ZnO nanoparticles indexed with the hexagonal or wurtzite structure. Branch rod-like and columnar hexagonal-like ZnO structures were shaped when aqueous NaOH and HMTA solutions were used as the precipitating agent, respectively. In this study, the crystallite size decreased as the CTAB concentration was increased. By using an aqueous NaOH solution as the precipitating agent, the E(g) value varied in a range of 3.222-3.235 eV. While the E(g) value varied in a range of 3.206-3.216 eV when an aqueous HMTA solution was used. The emission peaks fitted with a Gaussian function at 390, 510, 620 and 730 nm and the defects in ZnO crystal were decreased by modifying the precursor solution with CTAB.

Keywords: Nanostructured materials; Zinc oxide; Precipitation; Optical properties; X-ray diffraction