超细TiO₂粉体制备之微波水解法

超细TiO 2 粉体制备之微波水解法 Novel Way to Prepare Superfine TiO 2 Particle Microwave-Hydroclysis 刘忠士 LIU Zhong-shi 1 first-author 昝菱 ZAN Ling 1 武汉大学化学与分子科学学院,湖北,武汉,430072 武汉大学化学与分子科学学院,湖北,武汉,430072 College of Chemistry and Molecule Science, Wuhan University College of Chemistry and Molecule Science, Wuhan University 首次将微波加热法引入 Ti O2 的水解反应中 ,详细比较了传统加热和微波加热对水解产生 Ti O2 粒子的粒度、形貌和晶型的影响 .实验显示 ,同等条件下 ,微波加热得到分散性更好 ,粒径更小 ,金红石晶型含量更高的Ti O2 粒子 . We first reported to prepare superfine TiO 2 particle by hydrolysising chloride, nitrate, sulfate with two heating methods: traditional heating and microwave heating. the size, morphology, crystalline of samples were measured by X-ray diffraction and TEM,DTA. The effect of the two heating way on size, morphology, crystalline was studied and compared. It is shown the microwave heating can greatly decrease the Δ T 1 （from room temperature to boiling） and Δ T 2 （initial particles forming time range）. The size of TiO 2 particle was smaller and dispersed well, the rutile content of final products was higher by microwave heating. The rutile content was increased 5 times in chloride, 4 times in nitrate, 3 times in sulfate. We obtained smaller size, higher rutile content and well dispersal TiO 2 particles with microwave heating. The microwave hydrolysis method should be very useful for preparation of superfine well-dispersal particle.\; 微波水解 超细TiO2 新方法 microwave-hydrolysis superfine TiO2 particle novel-way TB383;TF123 国家教委九·五攻关项目! （96 -5 5 4-0 3-0 1） 2001-02-01 2021-04-01 2