| Title: | Selective Ru Adsorption on SnO(2)/CeO(2) Mixed Oxides for Efficient Destruction of Multicomponent Volatile Organic Compounds: From Laboratory to Practical Possibility |
| Author(s): | Long Y; Meng Q; Chen M; Luo X; Dai Q; Lu H; Wu Z; Weng X; |
| Address: | "Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China. School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, P. R. China. ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, P. R. China. Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Ru-based catalysts have been extensively employed for the catalytic destruction of chlorinated volatile organic compounds (VOCs), but their versatility for other routine VOCs' destruction has been less explored. Herein, we show that Ru-decorated SnO(2)/CeO(2) mixed oxides can sustain H(2)O and HCl poisonings and are endowed with extraordinary versatility for a wide range of VOCs' destruction. Selective adsorption of Ru on the cassiterite SnO(2) and CeO(2) nanorods through a Coulomb force can rationally tune the oxidation and dechlorination centers on decorated catalysts, where the epitaxial growth of RuO(x) on top of SnO(2) is endowed with excellent dechlorination ability and that on CeO(2) is functional as an oxidation center; the latter could also activate H(2)O to provide sufficient H protons for HCl formation. Our developed Ru/SnO(2)/CeO(2) catalyst can steadily destruct mono-chlorobenzene, ortho-dichlorobenzene, trichloroethylene, dichloromethane, epichlorohydrin, N-hexane, ethyl acetate, toluene, and their mixtures at an optimum temperature of 300 degrees C, and its monolithic form is also functional at this temperature with few dioxins being detected in the off-gas. Our results imply that the Ru-decorated SnO(2)/CeO(2) catalyst can meet the demands of regenerative catalytic oxidation for the treatment of a wide range of VOCs from industrial exhausts" |
| Keywords: | Adsorption Catalysis Oxidation-Reduction *Oxides *Volatile Organic Compounds catalytic destruction chlorine versatility volatile organic compounds; |
| Notes: | "MedlineLong, Yunpeng Meng, Qingjie Chen, Meiling Luo, Xueqing Dai, Qiguang Lu, Hanfeng Wu, Zhongbiao Weng, Xiaole eng Research Support, Non-U.S. Gov't 2022/06/24 Environ Sci Technol. 2022 Jul 5; 56(13):9762-9772. doi: 10.1021/acs.est.2c02925. Epub 2022 Jun 23" |
