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在气溶胶反应器中，利用四氯化钛（ＴｉＣｌ４）和三氯化铝（ＡｌＣｌ３）高温氧化制备纳米 ＴｉＯ２－ Ａｌ２Ｏ３复合粒子，采用 ＥＤＳ、 ＸＰＳ、 ＴＥＭ、 ＸＲＤ分析粒子化学组成、形貌、大小和晶型等；研究 了 ＡｌＣｌ３与ＴｉＣｌ４的摩尔比、反应温度等因素对粒子形态的影响，结果表明，复合粒子形貌较纯 ＴｉＯ２ 更为圆整、平均晶粒尺寸随 ＡｌＣｌ３浓度增加而减小；粒子粒径随反应温度升高而增大； ＡｌＣｌ３与 ＴｉＣｌ４的摩尔比影响粒子中 Ａｌ２Ｏ３和 ＴｉＯ２的晶型，当 ＡｌＣｌ３与 ＴｉＣｌ４的摩尔比为 ２．８０时粒子中有钛酸铝
In the aerosol reactor, nano TiO2-Al2O3 composite particles were prepared by high temperature oxidation of TiCl4 and AlCl3. The chemical composition, morphology, size The effects of AlCl3 and TiCl4 molar ratio, reaction temperature and other factors on the morphology of the particles were investigated. The results show that the morphology of the composite particles is more rounded than that of the pure TiO2, and the average grain size decreases with the increase of AlCl3 concentration ; The particle size increases with the increase of reaction temperature; the molar ratio of AlCl3 to TiCl4 affects the crystalline forms of Al2O3 and TiO2 in the particles. When the molar ratio of AlCl3 and TiCl4 is 2.80,