In this work, the effects of different extraction parameters on the particle size of the nanopowders extracted from titanium dioxide thin film samples were studied. These nanopowders were obtained by the conjunctional freezing-assisted ultrasonic extraction method. Titanium dioxide thin films were different in their structures (anatase-only, rutile-only, and mixed phase), and their structural characteristics were determined. Results showed that extraction parameters such as freezing temperature, ultrasonic frequency, and application time are very effective in determining the nanoparticle size, which is very important for many applications and uses of highly pure nanomaterials and nanostructures.

在这项工作中，研究了不同提取参数对从二氧化钛薄膜样品中提取的纳米粉体粒径的影响。这些纳米粉是通过联合冷冻辅助超声提取法获得的。二氧化钛薄膜的结构不同（仅锐钛矿型，仅金红石型和混合相），并确定了其结构特性。结果表明，诸如冷冻温度，超声频率和应用时间等提取参数对于确定纳米粒子的尺寸非常有效，这对于高纯度纳米材料和纳米结构的许多应用和用途非常重要。