板钛矿TiO_(2)/Cu_(2)O 异质结光催化CO_(2) 还原的综合性化学实验设计与教学实践  

Comprehensive Chemical Experiment Design and Teaching Practice of Photocatalytic CO_(2) Reduction with Brookite TiO_(2)/Cu_(2)O Heterojunction

作　　者：程刚 陈章静 熊金艳 CHENG Gang;CHEN Zhangjing;XIONG Jinyan(School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China;College of Chemistry and Chemical Engineering,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]武汉工程大学化学与环境工程学院,武汉430205 [2]武汉纺织大学化学与化工学院,武汉430200

出　　处：《实验科学与技术》2024年第4期71-78,共8页Experiment Science and Technology

基　　金：湖北省教育厅重点项目(D20151504)。

摘　　要：设计了板钛矿TiO_(2)(B-TiO_(2))/Cu_(2)O复合材料在光催化CO_(2)还原应用方面的综合性实验。分别合成了板钛矿TiO_(2)(B-TiO_(2))、Cu_(2)O及其B-TiO_(2)-Cu_(2)O复合材料。通过X射线粉末衍射(XRD)、扫描电子显微镜(SEM)和紫外-可见漫反射光谱(DRS)对材料的组成、结构和光学性质进行分析,通过气相色谱法对复合材料光催化CO_(2)还原性能进行了定性定量分析,并且研究了B-TiO_(2)与Cu_(2)O界面p-n异质结的形成对光催化CO_(2)还原活性的促进作用。该综合性实验课与科学前沿紧密及社会生活紧密结合,激发了学生对实验探索的兴趣,锻炼了学生的文献调研和动手实践能力,可作为大学本科生应用化学三年级的综合实验教学内容,为毕业论文的教学工作开展奠定了基础。A comprehensive experiment for the photocatalytic CO_(2)reduction of brookite TiO_(2)(B-TiO_(2))has been designed.The pristine brookite TiO_(2)(B-TiO_(2)),Cu_(2)O and their composites B-TiO_(2)-Cu_(2)O have been synthesized.The structure,morphology,and optic absorption properties of the material have been analyzed by X-ray diffractometer(XRD),UV-visible diffuse reflectance spectra(DRS),and scanning electron microscope(SEM),and the qualitative and quantitative analysis of the CO_(2)reduction performance has been carried out by gas chromatography.The promotion effect of the formation of p-n heterojunction on the CO_(2)reduction has also been discussed.This comprehensive experiment has exercised students’literature research and hands-on practical ability.Meanwhile,it is helpful for students to understand the frontier of photocatalysis issue and stimulate students’interest in learning.It is of great help to students’innovative thinking,rigorous scientific research attitude,and ability to analyze and solve problems.This experiment can be used as a comprehensive experimental teaching content for undergraduate students of grade three in the applied chemistry class,which lays a foundation for the teaching of graduation thesis.

关 键 词：综合性化学实验 光催化CO_(2)还原 TiO_(2)/Cu_(2)O p-n异质结 实验教学 

分 类 号：O6-339[理学—化学]