利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN102070192A 单分散球形二氧化钛纳米晶自组装超点阵材料的制备方法 无效 - 驳回

单分散球形二氧化钛纳米晶自组装超点阵材料的制备方法
摘要：
本发明公开了一种单分散球形二氧化钛纳米晶自组装超点阵材料的制备方法。包括如下步骤：1）将9～18ml的钛酸四丁酯加入到60～80ml的油酸中，搅拌1～2小时；2）加入16～20ml的十二胺，继续均匀搅拌20～25小时，得到前驱体溶液；3）将前驱体溶液移入不锈钢反应釜内密封，5～10分钟内迅速升温到300℃，保持搅拌，反应时间为1～10小时，自然冷却；4）将球形TiO2纳米晶分散在甲苯中形成TiO2溶液，溶剂蒸发即可形成大面积的球形TiO2自组装超点阵材料。本发明采用双表面活性剂辅助和快速升温的方法合成出单分散球形TiO2纳米晶，通过溶剂蒸发即可形成大面积的球形二氧化钛自组装超点阵材料，具有成本低，工艺简单等特点，适合大规模工业化生产。
摘要（英）：

The invention discloses a method for preparing a monodisperse spherical titanium dioxide (TiO2) nanocrystalline self-assembly superlattice material, which comprises the following steps of: 1) adding 9 to 18ml of tetrabutyl titanate into 60 to 80ml of oleic acid and stirring for 1 to 2 hours; 2) adding 16 to 20ml of dodecylamine, and continuously uniformly stirring for 20 to 25 hours to obtain precursor solution; 3) sealing the precursor solution in a stainless steel reaction kettle, rapidly raising the temperature to 300 DEG C within 5 to 10 minutes, keeping stirring, reacting for 1 to 10 hours and naturally cooling; and 4) dispersing spherical TiO2 nanocrystalline in toluene to obtain solution of TiO2, and evaporating the solvent to obtain the large-area spherical TiO2 self-assembly superlattice material. Due to the adoption of a double surfactant-assisted rapid temperature rise method, the monodisperse spherical TiO2 nanocrystalline is synthesized, the large-area spherical TiO2 self-assembly superlattice material can be formed through solvent evaporation, and the material has the characteristics of low cost, simple process and the like and is suitable for large-scale industrial production.

0/0