CAJ | 학술논문

介绍了用盐水解制备超细均分散球形TiO2的方法，详细讨论了浓度、酸度、阴离子、陈化时间、锻烧温度等因素对制备超细球形TiO2的影响，用透射电镜和粒度分析仪分析了TiO2的粒度和形貌，得到了均匀分散性好，金红石型结构，2 μm左右的球形TiO2.
개소료용염수해제비초세균분산구형TiO2적방법，상세토론료농도、산도、음리자、진화시간、단소온도등인소대제비초세구형TiO2적영향，용투사전경화립도분석의분석료TiO2적립도화형모，득도료균균분산성호，금홍석형결구，2 μm좌우적구형TiO2.
The superfine dispersed spherical particles of TiO2 was prepared by hydrolysis method. The morphology, the size, the crystalline of the partical, were measured by X-ray diffraction and TEM. The effect of anions, pH, concentration of reactant, aging on the formation of spherical particle was studied systematically. The formation domain of spherical particle was given. 　　It is shown that the change of reactant concentration and pH cause the variety of particle shape. The lower concentration, the lower pH values (higher acidty), the easier the formation of spherical particles. When a trace sulfate ion was added to the solution that is in the spherical domain, The spherical particles cann't be gotten. Only the smaller, non-spherical particles can be found. The aging at room temperature was effective to the dispersal. On aging the particles tends to become smaller and well dispersal. The impact of different calcining temperature on the size, morphology and crystalline was investigated. The higher the calcining temperature, the higher the rutile content, and the more dispersion. In this experiment, rutile, spherical and well dispersed TiO2 particles about 2μm were obtained.