| Title: | Synergistic effects of Cu species and acidity of Cu-ZSM-5 on catalytic performance for selective catalytic oxidation of n-butylamine |
| Author(s): | Xing X; Li N; Cheng J; Sun Y; Zhang Z; Zhang X; Hao Z; |
| Address: | "Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China. National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China. Electronic address: jiecheng@ucas.ac.cn. National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China" |
| DOI: | 10.1016/j.jes.2020.03.015 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "In this work, a series of Cu-ZSM-5 catalysts with different SiO(2)/Al(2)O(3) ratios (25, 50, 100 and 200) were synthesized and investigated in n-butylamine catalytic degradation. The n-butylamine can be completely catalytic degradation at 350 degrees C over all Cu-ZSM-5 catalysts. Moreover, Cu-ZSM-5 (25) exhibited the highest selectivity to N(2), exceeding 90% at 350 degrees C. These samples were investigated in detail by several characterizations to illuminate the dependence of the catalytic performance on redox properties, Cu species, and acidity. The characterization results proved that the redox properties and chemisorption oxygen primarily affect n-butylamine conversion. N(2) selectivity was impacted by the Bronsted acidity and the isolated Cu(2+) species. Meanwhile, the surface acid sites over Cu-ZSM-5 catalysts could influence the formation of Cu species. Furthermore, in situ diffuse reflectance infrared Fourier transform spectra was adopted to explore the reaction mechanism. The Cu-ZSM-5 catalysts are the most prospective catalysts for nitrogen-containing volatile organic compounds removal, and the results in this study could provide new insights into catalysts design for VOC catalytic oxidation" |
| Keywords: | Butylamines Catalysis Oxidation-Reduction Prospective Studies *Silicon Dioxide Acid sites Ch(3)ch(2)ch(2)ch(2)nh(2) Cu species Cu-ZSM-5 Selective oxidation; |
| Notes: | "MedlineXing, Xin Li, Na Cheng, Jie Sun, Yonggang Zhang, Zhongshen Zhang, Xin Hao, Zhengping eng Netherlands 2020/08/21 J Environ Sci (China). 2020 Oct; 96:55-63. doi: 10.1016/j.jes.2020.03.015. Epub 2020 May 6" |
