Zinc Oxide (ZnO) nanoparticles were synthesized by hydrothermal method under different conditions and studied various properties. FTIR studies proved the presence of ZnO bonding and purity of the samples. Grain size was found to be decreased with the increase of reaction temperature and increased with reaction time. TEM images show formation of nanorods under same reaction temperature, also nanoflowers and nanospheres for different temperatures. Intensity of luminescence peaks is found to be changed with variation in interplanar spacing. UV–vis spectra helped to identify the increased photon absorption in particles of bigger size. Change in bandgap value is also observed due to the difference in size of nanoparticles.

采用水热法在不同条件下合成了氧化锌（ZnO）纳米粒子，并研究了其各种性能。FTIR研究证明了ZnO键的存在和样品的纯度。发现晶粒尺寸随着反应温度的增加而减小，并且随着反应时间的增加而增大。TEM图像显示在相同反应温度下纳米棒的形成，以及在不同温度下纳米花和纳米球的形成。发现发光峰的强度随着平面间距的变化而改变。紫外可见光谱有助于识别更大尺寸的粒子中增加的光子吸收。由于纳米颗粒尺寸的差异，带隙值也发生了变化。