石墨相氮化碳的模板法制备、表征及光催化性能测试综合化学实验

Comprehensive Chemistry Experiment:Template Preparation of Graphite Carbon Nitride,Characterization and Performance Evaluation

采用简单原料(单氰胺、硅溶胶)利用模板法制备石墨相氮化碳,并对所得产物进行结构表征与形貌分析.采用光催化降解亚甲基蓝实验评价石墨相氮化碳的可见光催化性能,得到降解反应动力学方程与降解速率常数.通过实验,可使学生熟悉纳米材料可控制备中常用的模板法,对产物的测试与表征有利于加深学生对光催化材料结构与性能的了解.实验涉及多个学科领域,有利于拓宽学生知识面,培养学生科研创新能力.

Graphite carbon nitride was prepared from simple raw materials(melamine,silicon sol) using a template method.The structure and morphology of products were characterized and analyzed.The photocatalytic degradation of methylene blue testing was used to evaluate the visible light catalytic properties of graphite carbon nitride,and the degradation reaction kinetics equation and the degradation rate constant were obtained.Students can learn about the template method in controllable preparation of nonmaterialby doing the preparation experiment and their understanding of the structure and properties of light catalytic materials can be deepenedby doing the testing and characterization of the products.The experiment involves the multiple disciplines,which can broaden students’ knowledge horizon and cultivate their scientific research innovation ability.