DOI: 10.1016/j.atmosenv.2015.06.028
Scopus记录号: 2-s2.0-84936746670
论文题名: XPS surface chemical characterization of atmospheric particles of different sizes
作者: Guascito M ; R ; , Cesari D ; , Chirizzi D ; , Genga A ; , Contini D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 116 起始页码: 146
结束页码: 154
语种: 英语
英文关键词: Atmospheric aerosol chemical speciation
; Atmospheric particles
; Cascade impactor
; Particle surface composition
; XPS
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric chemistry
; Atmospheric composition
; Atmospheric thermodynamics
; Carbon
; Chemical speciation
; Chlorine compounds
; Meteorological instruments
; Nitrates
; Nitrogen
; Nitrogen compounds
; Optical properties
; Organic carbon
; Oxygen
; Sodium
; Urban growth
; Atmospheric particles
; Carbon concentrations
; Cascade impactors
; Organic functional groups
; Organic nitrogen compounds
; Particle surface
; Surface characterization
; Surface chemical composition
; X ray photoelectron spectroscopy
; ammonia
; carbon
; chlorine
; nitrate
; nitrogen
; organic carbon
; sodium
; sulfide
; sulfone
; sulfur
; aerosol composition
; aerosol formation
; ammonium nitrate
; atmospheric chemistry
; atmospheric particle
; carbon
; chlorine
; concentration (composition)
; nitrogen
; oxygen
; particle size
; pollutant source
; sodium
; speciation (chemistry)
; sulfur
; surface
; urban region
; X-ray spectroscopy
; Article
; atmosphere
; bioaccumulation
; climate
; controlled study
; human
; oxygen concentration
; particle size
; priority journal
; species differentiation
; surface property
; X ray photoelectron 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: Surface chemical composition of particles has a key role in determining the reactivity and optical properties of atmospheric aerosol. This composition depend on the particles sources and formation processes and it influences human health and climate. In this work, the X-ray photoelectron spectroscopy (XPS) has been used for the systematic surface characterization of atmospheric particles of different sizes, collected using a 10-stage MOUDI-II rotating cascade impactor in an urban background site. The high resolution XPS spectra allowed to distinguish different organic functional groups (C-C/CC, -C-O, -CO/-C(O)N, -C(O)O, C-O3=) and to speciate the detectable hetero-elements, sulphur (S-O42-, sulphone and sulphide compounds), nitrogen (N-H4+, N-O3-, N-O2- and organic-nitrogen compounds), sodium (Na+) and chlorine (Cl-) species. Significant differences in particles belonging to accumulation (small particles) and coarse (large particles) modes were observed being due to the formation processes and sources from which particles originated. The oxygen concentrations is inversely correlated with carbon concentrations, however, the content of oxidized organic carbon is not correlated with oxygen content confirming that the oxygen increment observed in large particles can likely be attributed to the contribution of inorganic species (crustal origin). The speciation of nitrogen showed ammonium only in the accumulation mode and nitrate only in coarse mode excluding the presence of ammonium nitrate of secondary origin in the area studied. A correlation of Na and Cl was attributed to the marine contribution with an excess of Cl on the surface correlated with the depletion of Cl observed in the bulk of particles. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81586
Appears in Collections: 气候变化事实与影响
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作者单位: Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy; Istituto di Scienze dell'Atmosfera e del Clima, ISAC-CNR, Lecce, Italy; Dipartimento di Beni Culturali, Università del Salento, Lecce, Italy
Recommended Citation:
Guascito M,R,, Cesari D,et al. XPS surface chemical characterization of atmospheric particles of different sizes[J]. Atmospheric Environment,2015-01-01,116