A series of cordierite monolithic catalysts with Ru species supported on different available low-cost carriers were prepared and investigated for the elimination of CVOCs. The results suggest that the monolithic catalyst with Ru species supported on anatase TiO carrier with abundant acidic sites exhibited the desired catalytic activity for DCM oxidation with the value of 368 °C. In addition, a pseudo-boehmite sol used as binder was introduced into the preparation of the monolithic catalysts to further improve the adhesion between the powder catalysts and cordierite honeycomb carrier. The results suggest that although the and of the Ru/TiO/PB/Cor shifted to higher temperature of 376 and 428 °C, the weight loss of the coating for the Ru/TiO/PB/Cor catalyst was improved and decreased to 6.5 wt%. Also, the as-obtained Ru/TiO/PB/Cor catalyst exhibited ideal catalytic properties for the abatement of ethyl acetate and ethanol, indicating that the catalyst can meet the demand for the treatment of actual multi-component industrial gas.
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http://dx.doi.org/10.1039/d2ra07823f | DOI Listing |
Environ Sci Technol
January 2025
State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
The main bottleneck in the catalytic combustion of chlorinated volatile organic compounds (CVOCs) is deactivation and the production of chlorine-containing byproducts originating from the chlorine species deposited on the catalyst. Herein, Ru supported on SnO (Ru/SnO) was prepared with the lattice matching principle. As RuO and SnO are both rutile phases, Ru species were present as highly dispersed RuO particles on the Ru/SnO catalyst.
View Article and Find Full Text PDFData 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.
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