Formation and evolution of environmentally persistent free radicals in charcoal and soot generated from biomass materials
文献类型：期刊论文
| 作者 | Yan, Xu3,4,5; Cao, Tao4,5; Chen, Hao3,4,5; Wu, Junhong3,4,5; Xu, Cuncun3,4,5; Song, Jianzhong1,4,5 ; Zhong, Yin1,4,5; Chen, Yingjun2; Zhang, Guohua1,4,5; Peng, Ping'an1,3,4,5
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| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2025-05-05 |
| 卷号 | 488页码:11 |
| 关键词 | Black carbon Charcoal Soot EPFRs ROS |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2025.137523 |
| 英文摘要 | Environmentally persistent free radicals (EPFRs) are emerging pollutants that are highly reactive and toxic, posing potential health risks. Biomass burning is a significant source of EPFRs, but there has been a notable gap in research regarding the EPFRs present in charcoal and soot produced from the same combustion process. Our study detected EPFRs in both charcoal and soot, but there were significant differences in their characteristics. The EPFR concentrations in charcoal were much higher than that in soot, by approximately 2-4 orders of magnitude, suggesting that charcoal may be more chemically reactive. Differences in the formation mechanisms between charcoal and soot were found to result in variations in the characteristics of EPFRs observed in each material. Furthermore, the ability of EPFRs to generate reactive oxygen species (ROS) differed considerably between charcoal and soot. Charcoal exhibited a strong ability to produce ROS, including O-1(2) and center dot OH radicals, and the abundances of O-1(2) was further enhanced (similar to 1.2-2.1 times) after illumination. In contrast, only the O-1(2) radical was found in soot produced at 300 degrees C. These findings enhanced our understanding of the environmental impact and potential toxicity of EPFRs, offering valuable insights for evaluating the risks associated with wildfires and agricultural burning. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001425961400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82705]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Song, Jianzhong |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China 2.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Preve, Shanghai 200433, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Xu,Cao, Tao,Chen, Hao,et al. Formation and evolution of environmentally persistent free radicals in charcoal and soot generated from biomass materials[J]. JOURNAL OF HAZARDOUS MATERIALS,2025,488:11. |
| APA | Yan, Xu.,Cao, Tao.,Chen, Hao.,Wu, Junhong.,Xu, Cuncun.,...&Peng, Ping'an.(2025).Formation and evolution of environmentally persistent free radicals in charcoal and soot generated from biomass materials.JOURNAL OF HAZARDOUS MATERIALS,488,11. |
| MLA | Yan, Xu,et al."Formation and evolution of environmentally persistent free radicals in charcoal and soot generated from biomass materials".JOURNAL OF HAZARDOUS MATERIALS 488(2025):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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