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采用双醇诱导自组装的方法可控合成了纳米片、实心球、核壳球、蛋壳球和空心球TiO2.利用SEM、TEM、XRD、UV-Vis等表征手段,探索了一元醇羟基的活泼性及丙三醇的三羟基结构在形成多级结构TiO2中的作用.丙三醇和一元醇的比例及醇热时间可控制TiO2的自组装过程而影响材料的形貌结构.同时光催化降解苯酚实验表明,具有多级结构的蛋壳球TiO2显示高活性,归因于光吸收增强.
The synthesis of nanosheets, solid spheres, core-shell spheres, eggshell spheres and hollow-spheres TiO2 were investigated by self-assembly of diol-induced self-assembly method. The characterization of the hydroxyl groups of monohydric alcohols by SEM, TEM, XRD and UV- Liveliness and glycerol trihydroxy structure in the formation of multi-level structure of TiO2 role.The proportion of glycerol and monohydric alcohol and alcohol thermal time can control the TiO2 self-assembly process and affect the morphology of the material. At the same time photocatalytic degradation Phenol experiments showed that the eggshell sphere TiO2 with a multi-level structure showed high activity due to enhanced light absorption.