Insight into catalytic performance and reaction mechanism for toluene total oxidation over Cu-Ce supported catalyst

被引：5
|
作者：
Liang, Xuan [1 ]
Zhang, Jin [1 ]
Tian, Juntai [1 ]
Xie, Zenghua [1 ]
Liu, Yue [1 ]
Liu, Peng [1 ,2 ,3 ,4 ]
Ye, Daiqi [1 ,2 ,3 ,4 ]
机构：
[1] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Peoples R China
[2] Natl Engn Lab VOCs Pollut Control Technol & Equipm, Guangzhou 510006, Peoples R China
[3] South China Univ Technol, Guangdong Prov Key Lab Atmospher Environm & Pollut, Guangzhou 510006, Peoples R China
[4] South China Univ Technol, Ctr Environm Risk Prevent & Emergency Disposal, Guangdong Prov Engn & Technol Res, Guangzhou 510006, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2025年 / 149卷
关键词：
Cu-Ce supported catalyst; Copper -cerium interaction; Oxygen vacancies; Toluene oxidation; Reaction mechanism; CO OXIDATION; NO REDUCTION; ACTIVE-SITES; ALUMINA; VOCS;
D O I：
10.1016/j.jes.2024.01.001
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Herein, three supported catalysts, CuO/Al 2 O 3 , CeO 2 /Al 2 O 3 , and CuO-CeO 2 /Al 2 O 3 , were synthesized by the convenient impregnation method to reveal the effect of CeO 2 addition on catalytic performance and reaction mechanism for toluene oxidation. Compared with CuO/Al 2 O 3 , the T 50 and T 90 (the temperatures at 50% and 90% toluene conversion, respectively) of CuO-CeO 2 /Al 2 O 3 were reduced by 33 and 39 degrees C, respectively. N 2 adsorptiondesorption experiment, XRD, SEM, EDS mapping, Raman, EPR, H 2 -TPR, O 2 -TPD, XPS, NH 3 - TPD, Toluene-TPD, and in -situ DRIFTS were conducted to characterize these catalysts. The excellent catalytic performance of CuO-CeO 2 /Al 2 O 3 could be attributed to its strong coppercerium interaction and high oxygen vacancies concentration. Moreover, in -situ DRIFTS proved that CuO-CeO 2 /Al 2 O 3 promoted the conversion of toluene to benzoate and accelerated the deep degradation path of toluene. This work provided valuable insights into the development of efficient and economical catalysts for volatile organic compounds. (c) 2024 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码：476 / 487
页数：12
相关论文
共 50 条
  • [21] MECHANISM OF CATALYTIC VAPOUR PHASE OXIDATION OF TOLUENE OVER FLUIDIZED VANADIUM PENTOXIDE CATALYST
    KUMAR, RN
    BHAT, GN
    KULOOR, NR
    INDIAN JOURNAL OF TECHNOLOGY, 1965, 3 (03): : 83 - &
  • [22] Catalytic oxidation of toluene by ozone over alumina supported manganese oxides: Effect of catalyst loading
    Rezaei, Ebrahim
    Soltan, Jafar
    Chen, Ning
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 136 : 239 - 247
  • [23] Catalytic ozone oxidation toluene over supported manganese cobalt composite: influence of catalyst support
    Jingxiu Shen
    Ning Gao
    Yao Shan
    Mingqing Liu
    Jining Liu
    Yuan Xu
    Shubao Shen
    Yingwen Chen
    Environmental Science and Pollution Research, 2021, 28 : 64778 - 64792
  • [24] Insights into the Reaction Mechanism of Catalytic Wet Air Oxidation of Ammonia Over Bimetallic Ru–Cu Catalyst
    Jile Fu
    Dewei Xiao
    Qingqing Yue
    Lili Geng
    Paul Oluwaseyi Fasan
    Nuowei Zhang
    Jinbao Zheng
    Bing H. Chen
    Topics in Catalysis, 2018, 61 : 1684 - 1693
  • [25] Catalytic ozone oxidation toluene over supported manganese cobalt composite: influence of catalyst support
    Shen, Jingxiu
    Gao, Ning
    Shan, Yao
    Liu, Mingqing
    Liu, Jining
    Xu, Yuan
    Shen, Shubao
    Chen, Yingwen
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2021, 28 (45) : 64778 - 64792
  • [26] Facile fabrication of hollow structured Cu-Ce binary oxides and their catalytic properties for toluene combustion
    Li, Lei
    Zhang, Changyu
    Chen, Feng
    Xiang, Yunting
    Yan, Jinlong
    Chu, Wei
    CATALYSIS TODAY, 2021, 376 : 239 - 246
  • [27] The reaction behaviors of acetonitrile and ethyl acetate simultaneous degradation over Cu-Ce/ZSM-5 catalyst
    Zhang, Yaoyu
    Wang, Yuxiong
    Liu, Yue
    Xu, Huimin
    Wu, Zhongbiao
    APPLIED SURFACE SCIENCE, 2023, 609
  • [28] Investigation of reaction mechanism and kinetic modelling for the toluene total oxidation in presence of CoAlCe catalyst
    Genty, E.
    Siffert, S.
    Cousin, R.
    CATALYSIS TODAY, 2019, 333 : 28 - 35
  • [29] Impact of H2 Reduction on the Performance and Stability of Phenol Catalytic Wet Air Oxidation (CWAO) Over Cu-Ce/AC Catalysts
    Chen, KangDi
    Chai, Siqi
    Li, Guoqiang
    Li, Zeyu
    Wang, Youqian
    Li, Heting
    Ma, Liwei
    Wei, Mai
    Zhang, Guojie
    Wang, Ying
    CHEMISTRYSELECT, 2024, 9 (32):
  • [30] Insight into enhanced catalytic performance of alkali-treated Al2O3 supported Ag catalyst for toluene oxidation
    Liu, Hongxuan
    Chen, Xi
    Qiu, Simeng
    Wei, Qinhong
    Qin, Yuan
    Ji, Lili
    Xu, Jing
    FUEL, 2025, 393
12345