DOI: 10.1016/j.atmosenv.2014.10.028
Scopus记录号: 2-s2.0-84910056504
论文题名: Local order and valence state of Fe in urban suspended particulate matter
作者: d'Acapito F ; , Mazziotti Tagliani S ; , Di Benedetto F ; , Gianfagna A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 582
结束页码: 586
语种: 英语
英文关键词: EXAFS
; Iron local order
; Iron valence state
; Urban PM2.5
; XANES
Scopus关键词: EXAFS
; Local order
; Urban PM<sub>2.5</sub>
; Valence state
; XANES
; fayalite
; ferric hydroxide
; iron
; iron derivative
; nanocrystal
; unclassified drug
; fayalite
; ferrihydrite
; iron
; suspended particulate matter
; urban atmosphere
; XANES spectroscopy
; Article
; leaching
; model
; solubility
; suspended particulate matter
; urban area
; X ray absorption spectroscopy
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: X-ray absorption spectroscopy investigations were carried out on urban suspended particulate matter (PM2.5) with the aim of studying the local order and valence state of iron, a metal abundant in this type of material, particularly in urban environments. XANES results, based on the comparison with model compounds fayalite (Fe2+) and ferrihydrite (Fe3+), show that iron is prevalent as Fe3+, whereas EXAFS data attribute the prevalent Fe3+ to a nanocrystalline phase of ferrihydrite. The dominance of Fe3+ (less soluble than Fe2+) is further confirmed by the fact that previous leaching experiments did not show Fe presence in the solution. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80525
Appears in Collections: 气候变化事实与影响
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作者单位: CNR-IOM-OGG c/o ESRF GILDA CRG, 6 Rue Jules Horowitz, Grenoble, France; Dipartimento di Scienze della Terra, Sapienza Università di Roma, P.le A. Moro, 5, Roma, Italy; Dipartimento di Scienze della Terra, Università di Firenze, via G. La Pira, 4, Firenze, Italy
Recommended Citation:
d'Acapito F,, Mazziotti Tagliani S,, Di Benedetto F,et al. Local order and valence state of Fe in urban suspended particulate matter[J]. Atmospheric Environment,2014-01-01,99