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Metal-Catalyzed Formation of Organic Pollutants Intermediated by Organic Free Radicals
Liu, Shuting; Liu, Guorui; Yang, Lili; Liu, Xiaoyun; Wang, Mingxuan; Qin, Linjun; Zheng, Minghui
2022-09-20
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Issue0Pages:1-12
AbstractMetal compounds play important roles in the formation of organic pollutants during thermal-related processes. However, the metal-catalyzed predominant organic pollutants have not previously been characterized nor have any detailed catalytic mechanisms been clarified. Here, we preciously distinguished the multiple organic free radical intermediates on metal catalyst surfaces during the organic pollutant formation through laboratory and theoretical studies. Differences between the organic free radical intermediate species, concentrations, and formation mechanisms under the catalysis of different metal compounds were investigated. The results were verified mutually with the differed characteristics of organic pollutant products. CuO predominantly catalyzed the formation of highly chlorinated phenoxy radical intermediates and dioxins. High proportions of semiquinone radicals and oxygen-containing derivatives were found on ZnO surfaces. Differently, methyl-substituted phenoxy radicals and long-chain products formed on Al2O3 surfaces. The results will be instructive for the target emission control of priority organic pollutants during thermal-related processes rich in different metal compounds.
Department环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室
KeywordPERSISTENT FREE-RADICALS POLYCYCLIC AROMATIC-HYDROCARBONS SURFACE-MEDIATED FORMATION SPIN RELAXATION-TIMES DE-NOVO SYNTHESIS GAMMA-ALUMINA FLY-ASH MODEL MECHANISM CHEMISTRY
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47574
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China
3.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China
Recommended Citation
GB/T 7714
Liu, Shuting,Liu, Guorui,Yang, Lili,et al. Metal-Catalyzed Formation of Organic Pollutants Intermediated by Organic Free Radicals[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022(0):1-12.
APA Liu, Shuting.,Liu, Guorui.,Yang, Lili.,Liu, Xiaoyun.,Wang, Mingxuan.,...&Zheng, Minghui.(2022).Metal-Catalyzed Formation of Organic Pollutants Intermediated by Organic Free Radicals.ENVIRONMENTAL SCIENCE & TECHNOLOGY(0),1-12.
MLA Liu, Shuting,et al."Metal-Catalyzed Formation of Organic Pollutants Intermediated by Organic Free Radicals".ENVIRONMENTAL SCIENCE & TECHNOLOGY .0(2022):1-12.
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