Efficient ozone decomposition over bifunctional Co_(3)Mn-layered double hydroxide with strong electronic interaction

作     者：Bin Liu Minxian Zhang Jingling Yang Mingshan Zhu Bin Liu;Minxian Zhang;Jingling Yang;Mingshan Zhu

作者机构：Guangdong Key Laboratory of Environmental Pollution and HealthSchool of EnvironmentJinan UniversityGuangzhou 511443China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2022年第33卷第10期

页      面：4679-4682页

核心收录：

学科分类：081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070602[理学-大气物理学与大气环境] 080502[工学-材料学] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financilly supported by the National Natural Science Foundation of China(No.2132064) the Science and Technology Program of Guangzhou(No.202102020325) 

主　　题：Co_(3)Mn-layered double hydroxide Ozone removal Hydroxyl groups Bifunctional catalysis Heterogeneous catalysis 

摘      要：Ground-level ozone is one of the primary pollutants detrimental to human health and *** ozone decomposition still suffers from low efficiency and unsatisfactory *** this work,we report a manganese-based layered double hydroxide catalyst(Co_(3)Mn-LDH),which exhibited a superior ozone decomposition performance with the efficiency of 100% and stability over 7 h under a GHSV of 2,000,000 mL g^(-1)h^(-1) and relative humidity of 15%.Even when the relative humidity increased to 50%,the ozone decomposition also reached 86%,which significantly exceeds as-synthesized MnO_(2) and commercial MnO_(2) in *** catalytic mechanism was studied by H_(2)-TPR,FT-IR and *** excellent performance of Co_(3)Mn-LDH can be attributed to its abundant surface hydroxyl groups that ensured the preferentially surface enrichment of ozone,as well as the cyclic dynamic replenishment of electrons between multivalent Co^(2+)/Co^(3+),Mn^(2+)/Mn^(3+)/Mn^(4+)and oxygen species that endowed the stable ozone *** work offers new insights into the design of efficient catalysts for ozone pollution control.