纳米TiO2制备、表征及光催化降解染料废水的综合设计实验

Design of a Comprehensive Experiment: Preparation,Characterization and Performance Evaluation of Nano TiO2 Materials

本文围绕纳米TiO2光催化降解环境污染物这一研究热点,设计了一个研究型综合实验方案,通过水热合成法制备纳米TiO2,并利用X-射线衍射技术和扫描电子显微镜对产物进行结构表征与形貌分析,通过光催化降解模拟染料废水,评价材料的光催化性能。该实验依托科研研究热点,鼓励学生自主设计综合实验进行探索,加深学生对知识点的综合理解,充分调动学生的积极性和学习兴趣,培养学生的创新能力和实践能力。

The designe of a comprehensive research experiment was introduced.The experiment is about the photocatalytic degradation of environmental pollutants by nano TiO2.The nano TiO2 was prepared by hydrothermal synthesis method.The TiO2 was characterized by X-ray powder diffraction(XRD)and the scanning electron microscopy(SEM).The TiO2 was usd as catalyst to photocatalytic degradation of dye water.The experiment relies on the research hot spot,encourages students to design comprehensive experiments to explore,deepens students'comprehensive understanding of knowledge points,fully mobilizes students'enthusiasm and study interest,and cultivates students'creative ability and practical ability.