TiO2微球级次结构的制备及其光催化降解甲基橙活性

Preparation of TiO2 Microsphere with Hierarchical Structure and its Photocatalytic Activity for Degradation of Methyl Orange

在正辛醇体系中,通过溶剂热反应制备出表面具有超细纳米棒的TiO2微米球,通过X射线衍射确定了产品的物相和组成为金红石结构的TiO2,通过扫描电镜和透射电镜对样品的外观形貌、大小以及表面结构进行了观察,利用差热-热重分析仪对样品的固含量进行了测量,最后利用所制备的TiO2微米球催化剂降解水溶液中的甲基橙。

TiO2 microspheres with nanoroads on surface were synthesized facilely in the n—octanol by solvothermal reaction. The phase of the obtained sample was characterized by XRD to be rutile TiO2.The shape,size and surface were observed by SEM and TEM.TG was performed on the sample to study the TiO2 content in the sample.Furthermore,the obtained hierarchical TiO2 microspheres were used to photocatalysize Methyl Orange,indicating that the microspheres are efficient for photocatalysis.