学以致用,教以致远——基于TiO_(2)/g-C_(3)N_(4)光催化降解水中有机染料的综合实验

Learn to Apply and Teach to Achieve:Introducing a Comprehensive Experiment on Photocatalytic Pollutants Removal by TiO_(2)/g-C_(3)N_(4)

创设模拟污水中有机染料废物的治理情境,结合无机光催化剂的光生载流子驱动反应理论,介绍了一个基于TiO_(2)/g-C_(3)N_(4)光催化降解水中有机染料的绿色环保化学综合实验。本实验通过焙烧法制备TiO_(2)/g-C_(3)N_(4)复合材料,利用X射线衍射、透射电镜、X射线光电子能谱仪、自动物理吸附仪、紫外-可见分光光度计对其结构和降解性能进行研究。该综合实验涵盖制备、表征、污染物降解等多个实验环节,实现无机化学、物理化学等多学科交叉融合,蕴含绿色化学的理念,并与当前学科热点无机纳米材料光催化污染物降解结合,有利于促进理论知识与合成实践之间的有机融合,为实现我国现代化建设培养具有远大理想的创新性应用人才。

In this paper,a simulation scenario of organic dye in sewage was constructed,along with the theory of photogenerated carriers-driven reaction of photocatalysts.A comprehensive experiment of green chemistry based on TiO_(2)/g-C_(3)N_(4) for the photocatalytic degradation of organic dye in water was designed.In the experiment,TiO_(2)/g-C_(3)N_(4) composite was synthesized by calcination,and its intrinsic structure and degradation performance were studied by X-ray diffraction,transmittance electron microscope,X-ray photoelectron spectroscopy,automatic physical adsorption measurements and ultraviolet-visible spectrophotometry.The comprehensive experiment involves material preparation,detailed characterization,pollutant degradation and other experimental sections to realize the cross-integration of inorganic chemistry,physical chemistry and other disciplines,which bears the concept of green chemistry.Moreover,the experiment is combined with the photocatalytic degradation of inorganic nanomaterials,which is the hot spot in current disciplines.Additionally,it promotes the combination between the theories and practice of synthesis,and more talents in scientific innovation with high ideals can be trained in the process of China’s modernization drive.