Catalytic oxidation of chlorinated volatile organic compounds over Mn-Ti composite oxides catalysts: Elucidating the influence of surface acidity

被引：120
|
作者：
Liu, Hao [1 ,2 ]
Li, Xian [1 ,2 ]
Dai, Qiguang [1 ,2 ]
Zhao, Hailin [1 ,2 ]
Chai, Guangtao [1 ,2 ]
Guo, Yanglong [1 ,2 ]
Guo, Yun [1 ,2 ]
Wang, Li [1 ,2 ]
Zhan, Wangcheng [1 ,2 ,3 ]
机构：
[1] East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China
[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China
[3] East China Univ Sci & Technol, Frontiers Sci Ctr Mat & Dynam Chem, Shanghai 200237, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 282卷 / 282期
基金：
中国国家自然科学基金;
关键词：
Composite metal oxides; Surface acidity; Reducibility; Chlorinated volatile organic compounds; Catalytic oxidation; LOW-TEMPERATURE; STRUCTURAL-PROPERTIES; MANGANESE OXIDES; LEWIS-ACID; COMBUSTION; PERFORMANCE; MECHANISM; 1,2-DICHLOROETHANE; DICHLOROMETHANE; REDUCTION;
D O I：
10.1016/j.apcatb.2020.119577
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of Mn-Ti composite oxides (MnyTi1-yOx) were prepared via the sol-gel method, and their reducibility and surface acidity were controlled by adjusting the Mn/Ti molar ratio. In addition, as a model reaction, the catalytic activity of Mn-Ti composite oxides for the deep oxidation of vinyl chloride (VC) was evaluated. It was found that the catalyst surface acidity played a decisive role in the oxidation of VC, on the condition that the catalyst reducibility was superior to that of Mn0.4Ti0.6Ox. Consequently, a linear relationship between the surface acidity of the MnyTi1-yOx catalysts (y >= 0.4) and the reaction rate of the VC oxidation process was observed. Moreover, the influence of Lewis acidic sites originating from Ti species on the catalytic activity of the MnyTi1-yOx catalysts was revealed. These results could lead to an efficient strategy for enhancing the CVOC oxidation reaction through finely tuning reducibility and surface acidity of the catalyst.
引用
收藏
页数：9
相关论文
共 50 条
  • [1] Catalytic degradation of chlorinated volatile organic compounds (CVOCs) over Ce-Mn-Ti composite oxide catalysts
    Zhou, Zhiwei
    Li, Qianqian
    Su, Guijin
    Pang, Jiaxin
    Sun, Bohua
    Meng, Jing
    Shi, Bin
    JOURNAL OF ENVIRONMENTAL SCIENCES, 2024, 138 : 326 - 338
  • [2] Ru-based monolithic catalysts for the catalytic oxidation of chlorinated volatile organic compounds
    Zhao, Yemin
    Xi, Chao
    Gao, Shan
    Wang, Yuejun
    Wang, Haiqiang
    Sun, Pengfei
    Wu, Zhongbiao
    RSC ADVANCES, 2023, 13 (10) : 7037 - 7044
  • [3] Research progress of catalytic oxidation of volatile organic compounds over Mn-based catalysts - a review
    Sui, Chao
    Zeng, Shiping
    Ma, Xiangyu
    Zhang, Yue
    Zhang, JingXin
    Xie, XiaoMei
    REVIEWS IN INORGANIC CHEMISTRY, 2023, 43 (01) : 1 - 12
  • [4] Recent advances in chlorinated volatile organic compounds' oxidation over multiple noble metal catalysts: A review based on rational manipulation of redox-acidity balance
    Ding, Shuyun
    Wu, Shilin
    Fang, Ningjie
    Chu, Yinghao
    Wang, Peng
    SEPARATION AND PURIFICATION TECHNOLOGY, 2024, 349
  • [5] Recent Advances of Chlorinated Volatile Organic Compounds' Oxidation Catalyzed by Multiple Catalysts: Reasonable Adjustment of Acidity and Redox Properties
    Su, Yun
    Fu, Kaixuan
    Pang, Caihong
    Zheng, Yanfei
    Song, Chunfeng
    Ji, Na
    Ma, Degang
    Lu, Xuebin
    Liu, Caixia
    Han, Rui
    Liu, Qingling
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2022, 56 (14) : 9854 - 9871
  • [6] Catalytic oxidation of volatile organic compounds with Mn-zeolites
    Toloza-Blanco, L.
    Gora-Marek, K.
    Tarach, K. A.
    Sobalska, J.
    Martinez-Triguero, J.
    Pla-Hernandez, A.
    Palomares, A. E.
    CATALYSIS TODAY, 2024, 432
  • [7] Removal of oxygenated volatile organic compounds by catalytic oxidation over Zr-Ce-Mn catalysts
    Azalim, Said
    Franco, Manuel
    Brahmi, Rachid
    Giraudon, Jean-Marc
    Lamonier, Jean-Francois
    JOURNAL OF HAZARDOUS MATERIALS, 2011, 188 (1-3) : 422 - 427
  • [8] Efficient catalytic oxidation of chlorinated volatile organic compounds over RuO2-WOx/Sn0.2Ti0.8O2 catalysts: Insight into the Cl poisoning mechanism of acid sites
    Zhou, Feiyi
    Xin, Qi
    Fu, Yujie
    Hua, Zhesheng
    Dong, Yi
    Ran, Mingchu
    Song, Hao
    Liu, Shaojun
    Qu, Ruiyang
    Yang, Yang
    Zhang, Xiao
    Zheng, Chenghang
    Gao, Xiang
    CHEMICAL ENGINEERING JOURNAL, 2023, 464
  • [9] Enhanced catalytic activity and stability of Ce doping on Cr supported HZSM-5 catalysts for deep oxidation of chlorinated volatile organic compounds
    Yang, Peng
    Xue, Xiaomin
    Meng, Zhonghua
    Zhou, Renxian
    CHEMICAL ENGINEERING JOURNAL, 2013, 234 : 203 - 210
  • [10] Catalytic oxidation of dichloromethane over W-Nb composite oxide catalysts modified by Co: The influence of redox ability and acidity
    Zhang, Pengfei
    Zhang, Xi
    Ren, Lingling
    Feng, Nengjie
    Wan, Hui
    Guan, Guofeng
    SURFACES AND INTERFACES, 2024, 49
12345