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A novel risk score-based prioritization method for pollutants in reclaimed water
Guo, Qiaorong; Wei, Dongbin; Wang, Feipeng; Chen, Miao; Du, Yuguo
2021-11-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN2095-4956
Volume61Pages:297-303
AbstractThermochemical two-step CO2 splitting is a potential approach that fixes the sustainable resource into transportable liquid fuels. However, the harsh CO2 splitting conditions, the limited oxygen release kinetics and capacity of metal oxides block further promoted the CO yield and solar-to-fuel energy efficiency. Here, we propose a different carbon cycle assisted by Ni/La2O3 via coupling methane decomposition with thermochemical CO2 splitting, replacing conventional metal oxides cycle. Superior performance was demonstrated with methane conversion reached around 94% with almost pure H-2 generation. Encouragingly, CO2 conversion of 98% and CO yield of 6.9 mmol g(-1) derived from CO2 were achieved, with peak CO evolution rate (402 mL min(-1) g(-1)) of orders of magnitude higher than that in metal oxide process and outstanding thermodynamic solar-to-fuel energy efficiency (55.5% vs. 18.5%). This was relevant to the synergistic activation of La2O3 and Ni for CO2 in carbon cycle, thus improving CO2 splitting reaction with carbon species. (C) 2021 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
Department环境化学与生态毒理学国家重点实验室
KeywordThermochemical CO2 splitting Carbon deposition CH4 conversion H-2 generation Thermodynamic energy efficiency
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46790
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guo, Qiaorong,Wei, Dongbin,Wang, Feipeng,et al. A novel risk score-based prioritization method for pollutants in reclaimed water[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,61:297-303.
APA Guo, Qiaorong,Wei, Dongbin,Wang, Feipeng,Chen, Miao,&Du, Yuguo.(2021).A novel risk score-based prioritization method for pollutants in reclaimed water.SCIENCE OF THE TOTAL ENVIRONMENT,61,297-303.
MLA Guo, Qiaorong,et al."A novel risk score-based prioritization method for pollutants in reclaimed water".SCIENCE OF THE TOTAL ENVIRONMENT 61(2021):297-303.
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