离子掺杂型二氧化锰催化性能的综合实验  

Comprehensive Experiment of Exploring the Catalytic Performance of Ion Doped Manganese Dioxide

作　　者：衣晓凤 吕弋[1] 宋红杰[1] 张立春[1] YI Xiaofeng;Lü Yi;SONG Hongjie;ZHANG Lichun(Teaching Center of Chemistry Experiment,Sichuan University,Chengdu 610064,China)

机构地区：[1]四川大学化学实验教学中心,成都610064

出　　处：《实验室研究与探索》2021年第5期14-17,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(21874094)。

摘　　要：设计了探究离子掺杂对隧道状二氧化锰催化发光性能影响的综合化学实验。通过水热合成法制备了铈离子和镧离子稀土离子掺杂的二氧化锰纳米材料,用XRD、SEM等对合成的材料进行了表征,并利用挥发性有机化合物可在二氧化锰表面产生催化发光的性质考察了不同离子掺杂的二氧化锰的催化发光性能。结果表明,掺杂铈离子或镧离子均可增强二氧化锰的催化发光效率,其中掺杂铈离子的材料催化发光效率更强,对气体的选择性也更好。通过参与材料制备、材料表征和材料应用整个科研基本过程,不仅可以培养学生的实验技能,还可以建立学生的科研思维,增强其探索未知的科学兴趣。A comprehensive chemical experiment is designed to explore the influence of ion doping on the catalytic luminescence performance of tunnel manganese dioxide.In this experiment,Cerium ion or Lanthanum ion doped manganese dioxide are prepared via hydrothermal synthesis and characterized by XRD,SEM technologies.The catalytic luminescence performance of different ion doped manganese dioxide are investigated by using the catalytic luminescence phenomena of volatile organic compounds on the surface of manganese dioxide.The results show that doping of Cerium ion or Lanthanum ion can enhance the catalytic luminescence efficiency of manganese dioxide,and the material doped with cerium ion has higher catalytic luminous efficiency and better gas selectivity.This experiment synthesizes the whole scientific research process including material preparation,material characterization and material application.It can not only cultivate students’experimental skills,but also establish students’scientific research thinking and enhance their interest in exploring unknown science.

关 键 词：离子掺杂 隧道状二氧化锰 催化发光 挥发性有机化合物 

分 类 号：O530[理学—等离子体物理] G642.423[理学—物理]