Designed a comprehensive chemistry teaching experiment transformed from a scientific research experiment on the biosynthesis of composite materials.Firstly,Fe3O4 pellets were prepared by hydrothermal method,and then PdAg/Fe3O4 nanocomposites were synthesized using microorganisms and characterized.In addition,the hydrogenation activity of synthesized PdAg/Fe3O4 was tested at room temperature and atmospheric pressure using 4-nitrophenol as a model chemical.Within 20 minutes,the reduction efficiency of 4-nitrophenol(4-NP)reached 99%,which was significantly improved compared to Pd/Fe3O4 and Ag/Fe3O4 composite materials.
万方数据