Catalytic removal of toluene over manganese oxide-based catalysts: a review

It is necessary to control the emissions of toluene, which is hazardous to both human health and the atmosphere environment and has been classified as a priority pollutant. Manganese oxide-based (Mn-based) catalysts have received increased attention due to their high catalytic performance, good phys...

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Bibliographic Details
Published in:Environmental science and pollution research international 2020, Vol.27 (3), p.2482-2501
Main Authors: Lyu, Yue, Li, Caiting, Du, Xueyu, Zhu, Youcai, Zhang, Yindi, Li, Shanhong
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biodegradation
Catalysis
Catalysts
Catalytic oxidation
Crystal structure
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Low temperature
Manganese
Manganese Compounds - analysis
Manganese Compounds - chemistry
Manganese oxides
Membrane separation
Metal oxides
Morphology
Oxidation
Oxidation-Reduction
Oxides
Oxides - analysis
Oxides - chemistry
Pollutants
Reaction kinetics
Review Article
Toluene
Toluene - analysis
Waste Water Technology
Water Management
Water Pollution Control
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Summary:It is necessary to control the emissions of toluene, which is hazardous to both human health and the atmosphere environment and has been classified as a priority pollutant. Manganese oxide-based (Mn-based) catalysts have received increased attention due to their high catalytic performance, good physicochemical characteristic, availability in various crystal structures and morphologies, and being environmentally friendly and low cost. These catalysts can be classified into five categories, namely single manganese oxide, Mn-based composite oxides, Mn-based special oxides, supported Mn-based oxides, and Mn-based monoliths. This review focused on the recent progress on the five types of Mn-based catalysts for catalytic removal of toluene at low temperature and further systematically summarized the strategies improving catalysts, including improving synthetic methods, incorporating MnO x with other metal oxides, depositing Mn-based oxides on proper supports, and tuning the supports. Moreover, the effect of coexisting components, the reaction kinetics, and the oxidation mechanisms toward the removal of toluene were also discussed. Finally, the future research direction of this field was presented.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-019-07037-2