Climate Change Data Portal
| DOI | 10.1016/j.jes.2023.06.005 |
| Microscopic and spectroscopic analysis of atmospheric iron-containing single particles in Lhasa, Tibet | |
| Chen, Junyu; Zhang, Daobin; Fu, Yiran; Wang, Jinhu; Cui, Xiaomei; Qu-zong, Ci-ren; Zhang, Qiangying; Jin, Chan; Duo, Bu | |
| 发表日期 | 2024 |
| ISSN | 1001-0742 |
| EISSN | 1878-7320 |
| 起始页码 | 40 |
| 结束页码 | 50 |
| 卷号 | 141 |
| 英文摘要 | The Tibetan Plateau, known as the Third Pole, is currently in a state of perturbation caused by intensified human activity. In this study, 56 samples were obtained at the five sampling sites in typical area of Lhasa city and their physical and chemical properties were investigated by TEM/EDS, STXM, and NEXAFS spectroscopy. After careful examination of 3387 single particles, the results showed that Fe should be one of the most frequent metal elements. The Fe-containing single particles in irregular shape and micrometer size was about 7.8% and might be mainly from local sources. Meanwhile, the Fe was located on the subsurface of single particles and might be existed in the form of iron oxide. Interestingly, the core-shell structure of iron-containing particles were about 38.8% and might be present as single-, dual- or triple-core shell structure and multi-core shell structure with the Fe/Si ratios of 17.5, 10.5, 2.9 and 1.2, respectively. Meanwhile, iron and manganese were found to coexist with identical distributions in the single particles, which might induce a synergistic effect between iron and manganese in catalytic oxidation. Finally, the solid spherical structure of Fe-containing particles without an external layer were about 53.4%. The elements of Fe and Mn were co-existed, and might be presented as iron oxide-manganese oxide-silica composite. Moreover, the ferrous and ferric forms of iron might be co-existed. Such information can be valuable in expanding our understanding of Fe-containing particles in the Tibetan Plateau atmosphere. (c) 2024 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ) |
| 关键词 | Fe-containing single particleIrregular shapeCore-shell structureSolid spherical structureTransmission electron microscopySynchrotron X-ray microscopy |
| 英文关键词 | TYPICAL METAL PARTICLES; PARTICULATE MATTER; MIXING STATE; HEALTH-RISK; SEM-EDX; AEROSOL; URBAN; HAZE; SOLUBILITY; SHANGHAI |
| WOS研究方向 | Environmental Sciences |
| WOS记录号 | WOS:001155009800001 |
| 来源期刊 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/283111 |
| 作者单位 | Tibet University; Chinese Academy of Sciences; Shanghai Institute of Applied Physics, CAS; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS |
| 推荐引用方式 GB/T 7714 | Chen, Junyu,Zhang, Daobin,Fu, Yiran,et al. Microscopic and spectroscopic analysis of atmospheric iron-containing single particles in Lhasa, Tibet[J]. 中国科学院青藏高原研究所,2024,141. |
| APA | Chen, Junyu.,Zhang, Daobin.,Fu, Yiran.,Wang, Jinhu.,Cui, Xiaomei.,...&Duo, Bu.(2024).Microscopic and spectroscopic analysis of atmospheric iron-containing single particles in Lhasa, Tibet.JOURNAL OF ENVIRONMENTAL SCIENCES,141. |
| MLA | Chen, Junyu,et al."Microscopic and spectroscopic analysis of atmospheric iron-containing single particles in Lhasa, Tibet".JOURNAL OF ENVIRONMENTAL SCIENCES 141(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
