Controllable synthesis of MnO_(2)/iron mesh monolithic catalyst and its significant enhancement for toluene oxidation

作     者：Meijuan Qi Zhe Li Zhang Zhang Yanshan Gao Qiang Wang Meijuan Qi;Zhe Li;Zhang Zhang;Yanshan Gao;Qiang Wang

作者机构：Beijing Key Lab for Source Control Technology of Water PollutionCollege of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research Center for Water Pollution Source Control&Eco-remediationCollege of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Beijing Municipal Ecological and Environmental Monitoring CenterBeijing 100048China 

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

年 卷 期：2023年第34卷第2期

页      面：338-341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）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Fundamental Research Funds for the Central Universities (No. 2021ZY79) Beijing Municipal Education Commission through the Innovative Transdisciplinary Program "Ecological Restoration Engineering” (No. GJJXK210102) National Natural Science Foundation of China (Nos. 42075169, U1810209) National Key R&D Program of China (No. 2021YFE0110800) Chinese-Serbian collaboration project (No. 451-03-1205/2021-09) 

主　　题：Toluene oxidation Iron mesh monoliths catalysts MnO_(2) Resistance properties Reaction mechanism 

摘      要：A series of monolithic MnO_(2)/iron mesh (IM) catalysts for oxidation of toluene were successfully prepared by using in situ hydrothermal ***_(2)can grow firmly on the IM substrates surface with a shedding rate of only 0.14%.Due to the highest O_(ads) and high-valent Mn^(4+) and Fe^(3+) elements,the temperature at 50% and 90% toluene conversion (T_(50%) and T_(90%)) was 252 and 265℃,respectively for the best performance catalyst (hydrothermal temperature of 80℃,hydrothermal time of 12 h,and precursor manganese ion concentration of 0.03 mol/L).The catalysts also presented good water resistance and cycle ***-situ DRIFTS results suggesting that toluene was first rapid transformed into the reaction intermediate species (benzoate species) and then converted to CO_(2)and H_(2)***,this work provides a new direction for the research and application of IM-based monolithic catalysts.