首页|Introducing cerium into TiO2@MnOx hollow-sphere structure for highly active photothermocatalysis degradation of ethyl acetate and NO under H2O at low temperature
Introducing cerium into TiO2@MnOx hollow-sphere structure for highly active photothermocatalysis degradation of ethyl acetate and NO under H2O at low temperature
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The CeO2-TiO2@MnOx catalyst was prepared by the co-precipitation method and applied to the photo-thermocatalysis system of ethyl acetate and NO simultaneous degradation under H2O at low tempera-ture,which introduced Ce into TiO2@MnOx hollow sphere structure.The optimum TiO2/MnOx ratio and Ce introducing amount were obtained in the process.Among of them,the NO and ethyl acetate con-version percentage of TiO2@MnOx(nMn:nTi=40:40)is 74％and 62％at 240 ℃,respectively.CeO2-TiO2@MnOx(nMn-Ti;nce=1:1)exhibits the best catalytic performance,its efficiency for NO conversion is 83％and the conversion of ethyl acetate reaches 72％at 240 ℃.In addition,it is confirmed that the Ce-doped nanocomposites have more uniform dispersion through various characterization and analysis methods.Meanwhile,these catalysts have a large specific surface area as well as a large number of surface-active oxygen and oxygen vacancies.It can further improve the catalytic performance based on the adjusted ratio of active components.Moreover,this work investigated the relationship between multi-metal interactions and catalytic performance in the presence of H2O.Finally,the possible reaction pathways for the simultaneous removal of NO and ethyl acetate were explored in our system.
Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area,Guilin University of Technology,Guilin,541004,China
The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control,Guilin University of Technology,Guilin,541004,China
Technical Innovation Center of Mine Geological Environmental Restoration Engineering in Southern Karst Area,Nanning,530022,China
Foundation of Guangxi Science and Technology of Base & Talent Special ProgramGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology
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