论文部分内容阅读
以TiO2粉体为前驱体,采用水热法制备了Fe3+/TiO2复合粒子,并利用正交实验研究反应温度、掺铁量、反应时间、烧结温度和NaOH浓度对水热法制备Fe3+/TiO2复合粒子粒径大小的影响。利用透射电镜(TEM)、能量色散型X射线光谱仪(EDX)和X射线衍射仪(XRD)等对产物进行了表征。结果表明水热法制备Fe3+/TiO2复合粒子的最佳工艺条件为:NaOH溶液浓度为7mol/L,掺铁量为7%(摩尔分数),反应温度为170℃,反应时间为6h,烧结温度为400℃。
Fe3 + / TiO2 composite particles were prepared by hydrothermal method using TiO2 powder as precursor. The effects of reaction temperature, iron-doped amount, reaction time, sintering temperature and NaOH concentration on the synthesis of Fe3 + / TiO2 composite by orthogonal experiment Effect of particle size. The products were characterized by TEM, EDX and XRD. The results show that the optimum conditions for the hydrothermal synthesis of Fe3 + / TiO2 composite particles are as follows: the concentration of NaOH solution is 7mol / L, the amount of iron is 7% (mole fraction), the reaction temperature is 170 ℃, the reaction time is 6h, the sintering temperature 400 ° C.