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Sci Total Environ

Title:		A high-performance and stable Cu/Beta for adsorption-catalytic oxidation in-situ destruction of low concentration toluene
Author(s):		Du Y; Xiao G; Guo Z; Lin B; Fu M; Ye D; Hu Y;
Address:		"School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China. School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China. School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China. Electronic address: huyun@scut.edu.cn"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20220414
Issue:
Page Number:		155288 -
DOI:		10.1016/j.scitotenv.2022.155288
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Finding a cost-effective treatment to remove of low concentrations of volatile organic compounds (VOCs) is still a challenge. In this study, a Cu/Beta material was developed for in situ adsorption-catalytic oxidation of low concentrations of toluene. The results showed that the addition of Cu enhanced the adsorption and catalytic oxidation of toluene by Beta zeolite. Cu7/Beta with a Cu(+) ratio of close to 50% performed best. The high adsorption of Cu7/Beta was mainly attributed to the abundant Cu(+) species and the micro-mesoporous structure of the Beta zeolite, and the high catalytic oxidation was attributed to the lattice oxygen in the uniformly dispersed CuO. Finally, the adsorption intermediates and reaction pathways in the catalytic oxidation of toluene were clarified using XPS and DRIFTS spectra. This work provides new strategies for the development of efficient and stable adsorption-catalytic oxidation in situ destruction materials"
Keywords:		Adsorption Catalysis Oxidation-Reduction *Toluene *Zeolites/chemistry Adsorption-catalytic oxidation integration Cu/Beta Toluene;
Notes:		"MedlineDu, Yueying Xiao, Gaofei Guo, Ziyang Lin, Beilong Fu, Mingli Ye, Daiqi Hu, Yun eng Netherlands 2022/04/17 Sci Total Environ. 2022 Aug 10; 833:155288. doi: 10.1016/j.scitotenv.2022.155288. Epub 2022 Apr 14"