| Title: | Low-Temperature Catalytic Ozonation of Multitype VOCs over Zeolite-Supported Catalysts |
| Author(s): | Shao J; Zhai Y; Zhang L; Xiang L; Lin F; |
| Address: | "State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China. Zhejiang SUPCON Technology Co., Ltd., Hangzhou 310053, China. China Energy Engineering Group, Zhejiang Electric Power Design Institute Co. Ltd., Hangzhou 310012, China. School of Environmental Science and Engineering, Tianjin University and Tianjin Key Lab of Biomass and Wastes Utilization, Tianjin 300072, China" |
| Journal Title: | Int J Environ Res Public Health |
| ISSN/ISBN: | 1660-4601 (Electronic) 1661-7827 (Print) 1660-4601 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) are an important source of air pollution, harmful to human health and the environment, and important precursors of secondary organic aerosols, O(3) and photochemical smog. This study focused on the low-temperature catalytic oxidation and degradation of benzene, dichloroethane, methanethiol, methanol and methylamine by ozone. Benzene was used as a model compound, and a molecular sieve was selected as a catalyst carrier to prepare a series of supported active metal catalysts by impregnation. The effects of ozone on the catalytic oxidation of VOCs and catalysts' activity were studied. Taking benzene as a model compound, low-temperature ozone catalytic oxidation was conducted to explore the influence of the catalyst carrier, the active metal and the precious metal Pt on the catalytic degradation of benzene. The optimal catalyst appeared to be 0.75%Pt-10%Fe/HZSM(200). The catalytic activity and formation of the by-products methylamine, methanethiol, methanol, dichloroethane and benzene over 0.75%Pt-10%Fe/HZSM(200) were investigated. The structure, oxygen vacancy, surface properties and surface acidity of the catalysts were investigated. XRD, TEM, XPS, H(2)-TPR, EPR, CO(2)-TPD, BET, C(6)H(6)-TPD and Py-IR were combined to establish the correlation between the surface properties of the catalysts and the degradation activity" |
| Keywords: | Humans *Zeolites/chemistry *Volatile Organic Compounds Benzene Temperature Methanol Ethylene Dichlorides Catalysis *Ozone Oxidation-Reduction Methylamines Hzsm VOCs catalytic ozonation low temperature; |
| Notes: | "MedlineShao, Jiaming Zhai, Yunchu Zhang, Luyang Xiang, Li Lin, Fawei eng Research Support, Non-U.S. Gov't Switzerland 2022/11/12 Int J Environ Res Public Health. 2022 Nov 4; 19(21):14515. doi: 10.3390/ijerph192114515" |
