| Title: | Simultaneous removal of NO and dichloromethane (CH(2)Cl(2)) over Nb-loaded cerium nanotubes catalyst |
| Author(s): | Ouyang W; Zhou Y; Fei X; Bai Y; Wang H; Wu Z; |
| Address: | "Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler and Furnace Flue Gas Pollution Control, Hangzhou 310058, China. Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler and Furnace Flue Gas Pollution Control, Hangzhou 310058, China. Electronic address: haiqiangwang@zju.edu.cn" |
| DOI: | 10.1016/j.jes.2021.03.022 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Herein, a series of niobium oxide supported cerium nanotubes (CeNTs) catalysts with different loading amount of Nb(2)O(5) (0-10 wt.%) were prepared and used for selective catalytic reduction of NO(x) with NH(3) (NH(3)-SCR) in the presence of CH(2)Cl(2). Commercial V(2)O(5)-WO(3)-TiO(2) catalyst was also prepared for comparison. The physcial properties and chemical properties of the Nb(2)O(5) loaded cerium nanotubes catalysts were investigated by X-ray diffractometer, Transmission electron microscope, Brunauer-Emmett-Teller specific surface area, H(2)-temperature programmed reduction, NH(3)-temperature programmed desorption and X-ray photoelectron spectroscopy. The experiment results showed that the loading amount of Nb(2)O(5) had a significant effect on the catalytic performance of the catalysts. 10 wt.% Nb-CeNTs catalyst presented the best NH(3)-SCR performance and degradation efficiency of CH(2)Cl(2) among the prepared catalysts, due to its superior redox capability, abundant surface oxygen species and acid sites, the interaction between Nb and Ce, higher ratio of Nb(4+)/(Nb(5+)+ Nb(4+)) and Ce(3+)/(Ce(3+) + Ce(4+)), as well as the special tubular structure of cerium nanotube. This study may provide a practical approach for the design and synthesis of SCR catalysts for the simultaneously removal NO(x) and chlorinated volatile organic compounds (CVOCs) emitted from the stationary industrial sources" |
| Keywords: | Ammonia Catalysis *Cerium Methylene Chloride *Nanotubes Niobium Oxidation-Reduction Titanium CH(2)Cl(2) Cerium nanotubes Niobium oxide Nitrogen oxides Selective catalytic reduction Simultaneous removal; |
| Notes: | "MedlineOuyang, Weilong Zhou, Yi Fei, Xiaoqi Bai, Yarong Wang, Haiqiang Wu, Zhongbiao eng Netherlands 2021/12/25 J Environ Sci (China). 2022 Jan; 111:175-184. doi: 10.1016/j.jes.2021.03.022. Epub 2021 Apr 2" |
