摘要
该综合实验制备了一种负载型催化剂,并对其光催化还原Cr(Ⅵ)性能进行测试。采用溶剂热法制备g-C3N4/MIL-125(Ti)催化剂,通过X射线粉末衍射(XRD)、透射电子显微镜(TEM)、N2-吸脱附曲线、固体紫外-可见漫反射光谱(DRS)、荧光光谱(PL)及交流阻抗谱(EIS)表征了催化剂的结构、形态以及光催化性能。结合材料的表征数据及性能测试结果分析探讨g-C3N4的负载量对光催化还原Cr(Ⅵ)活性的影响,进一步探究该催化反应的进行机制。该实验实现了光催化技术与物理化学实验教学的结合,可让学生获取催化学科的前沿知识,了解催化反应以及各种现代测试技术的基本原理。
A supported catalyst was prepared and its photocatalytic reduction Cr ( VI ) performance was tested. The photocatalytic technology was combined with the experimental teaching of physical chemistry. The g-C3N4/MIL-125(Ti) catalyst was prepared by solvothermal method. The structure, morphology and photocatalytic activity of the catalyst were characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM), N2 adsorption-desorption curve, UV- DRS, fluorescence spectroscopy (PL) and electrochemical impedance spectroscopy (EIS). The effects of the loading of g-C3N4on the photocatalytic activity of Cr( VI) were investigated by characterization data and performance test results. The mechanism of the catalytic reaction was further explored. This experiment will enable students to acquire the frontiers of the catalytic discipline, understand the catalytic reaction and the basic principles of various modern test techniques. It can also improve students comprehensive experimental ability, stimulate independent thinking and innovative consciousness, which is beneficial to the cultivation of innovative talents.
作者
张晓东
张夏璐
ZHANG Xiao-Dong;ZHANG Xia-Lu(School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《化学教育（中英文）》
CAS
北大核心
2019年第20期35-39,共5页
Chinese Journal of Chemical Education
基金
上海市教委本科重点课程建设项目
上海市课程思政教育教学改革试点课程
精细化教学研讨与培训项目
上海理工大学2018年度教师教学发展研究一般项目(CFTD18040Y)
