Fe3O4@GO@TiO2的制备及光催化降解综合化学实验的设计

A Comprehensive Chemical Experiment of Preparation and Photocatalytic Degradation of Fe3O4@GO@TiO2

以氧化石墨和Fe3O4为主要原料,采用溶胶-凝胶法制备了磁性氧化石墨烯/二氧化钛(Fe3O4@GO@TiO2)复合光催化剂,使用扫描电镜(SEM)、X-射线衍射(XRD)、红外光谱(FT-IR)等手段对复合光催化剂的形貌、晶型结构及官能团进行了表征,并考察其对甲基橙的光催化性能.实验涉及材料化学、无机合成、仪器分析、催化及环境等领域,可作为高年级化学类专业本科生的综合实验,有助于培养学生的科研思维,激发学生的创新意识.

The Fe3O4@GO@TiO2 composite photocatalyst was prepared with the sol-gel method using graphite oxide and Fe3O4 as the main raw materials.The morphology,crystal structure and functional groups of the composite photocatalyst were characterized by SEM,XRD and FT-IR.The photocatalytic properties of methyl orange were also investigated.The experiment involved material chemistry,inorganic synthesis,instrumental analysis,catalysis and environment.It could be used as a comprehensive chemical experiment for senior undergraduates majoring in chemistry,and helps to cultivate students’scientific research thinking and stimulate students’innovative consciousness.