High activity of CeO2-TiO2 composites for deep oxidation of 1,2-dichloroethane

作     者：Jialu Wang Zhinan Shi Renxian Zhou Jialu Wang;Zhinan Shi;Renxian Zhou

作者机构：Institute of CatalysisZhejiang UniversityHangzhou 310028PR China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2020年第38卷第8期

页      面：906-911,I0003页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Project supported by the National Natural Science Foundation of China(21477109) National Key Research and Development Program of China(2016YFC0204300)。 

主　　题：CeO2-TiO2 catalysts Synergism Chlorinated VOCs Catalytic oxidation Rare earths 

摘      要：CeO2-TiO2 catalysts prepared by different methods were investigated for deep oxidation of 1,2-dichloroethane(DCE),as a typical representative of the chlorinated volatile organic compounds(CVOCs).Characterization analysis reveals that CeO2-TiO2 catalysts prepared by sol-gel and coprecipitation methods exhibit higher specific area,CeO2 and TiO2 particles are highly dispersed into each other and the reducibility and mobility of active oxygen species are obviously promoted due to the strong interaction between the two catalysts CeO2 and TiO2,resulting in higher catalytic activity for DCE oxidation to and less chlorinated byproduct.The high calcination temperature would lead to the formation of a new monoclinic phase Ce0.3Ti0.7O2 and sintering,which is the main reason for the catalytic activity for DCE oxidation markedly decreases.