Volatile organic compounds (VOCs) are considered the culprit of secondary air pollution such as ozone, secondary organic aerosols, and photochemical smog. Among various technologies, catalytic oxidation is considered a promising method for the post-treatment of VOCs. Researchers are sparing no effort to develop novel catalysts to meet the requirements of the catalytic process. Compared with the powdered or granular catalysts, the monolithic catalysts have the advantages of low pressure drop, high utilization of active phases, and excellent mechanical properties. This review summarized the new design of monolithic catalysts (including new preparation methods, new supports, and new energy supply methods) for the post-treatment of VOCs. It addressed the advantages of the new designs in detail, and the scope of applicability for each new monolithic catalyst was also highlighted. Finally, the highly required future development trends of monolithic catalysts for VOCs catalytic oxidation are recommended. We expect this work can inspire and guide researchers from both academic and industrial communities, and help pave the way for breakthroughs in fundamental research and industrial applications in this field.
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http://dx.doi.org/10.1016/j.chemosphere.2022.136256 | DOI Listing |
Data Brief
December 2024
Yueyang Xingchang Petrochemical Co., Ltd., Yueyang 414000, PR China.
Under industrial conditions, efficient catalytic oxidation of Chlorinated volatile organic compounds is an important challenge, not only because of the poisonous effect of Chlorinated volatile organic compounds on catalysts, but also because of their high reaction temperature, which has an adverse impact on industrialization. In a recent article ( Ru/CeO ) [1], we developed a strategy for preparing a simple and efficient monolithic catalyst for the catalytic combustion of chlorobenzene. Ru/CeO was loaded on the industrial support cordierite by a Sol-gel method.
View Article and Find Full Text PDFNanoscale
December 2024
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China.
Multiple functional tailored materials have shown great potential for both pollutant degradation and freshwater recovery. In this study, we synthesized densely distributed Co onto carbon-layer-coated Ni/AlO hydrangea composites (Ni/AlO@Co) the polymerization of dopamine under a controlled graphitized process. The characterization results revealed that Ni/AlO@Co, with abundant exposed bimetallic Co-Ni species on the surface of AlO, could afford accessible catalytic sites for persulphate activation and subsequent pollutant degradation.
View Article and Find Full Text PDFLangmuir
December 2024
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
Analyst
December 2024
School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
Ground-level ozone pollution poses significant risks to ecosystems and human health and requires effective control measures. This study focused on the monolithic ozone degradation catalyst based on powdered α-MnO and comprehensively investigated its catalytic performance, moisture resistance, and stability. The monolithic catalyst achieved the optimal catalytic activity with an ozone conversion rate of 99% after being calcined at 400 °C for 3 hours.
View Article and Find Full Text PDFMolecules
November 2024
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Institute of New Concept Sensors and Molecular Materials, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
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