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DOI	10.1039/d0ra08943e
	The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy
	Abid, Abdul Rahman; Reinhardt, Maximilian; Boudjemia, Nacer; Pelimanni, Eetu; Milosavljevic, Aleksandar R.; Saak, Clara-Magdalena; Huttula, Marko; Bjorneholm, Olle; Patanen, Minna
通讯作者	Abid, AR ; Patanen, M (corresponding author), Univ Oulu, Nano & Mol Syst Res Unit, Fac Sci, POB 3000, Oulu 90570, Finland. ; Abid, AR (corresponding author), Uppsala Univ, Mol & Condensed Matter Phys, Angstromlab, S-75237 Uppsala, Sweden.
来源期刊	RSC ADVANCES
EISSN	2046-2069
出版年	2021
卷号	11 期号:4 页码:2103-2111
英文摘要	Ca- and Cl-containing nanoparticles are common in atmosphere, originating for example from desert dust and sea water. The properties and effects on atmospheric processes of these aerosol particles depend on the relative humidity (RH) as they are often both hygroscopic and deliquescent. We present here a study of surface structure of free-flying CaCl2 nanoparticles (CaCl2-NPs) in the 100 nm size regime prepared at different humidity levels (RH: 11-85%). We also created mixed nanoparticles by aerosolizing a solution of CaCl2 and phenylalanine (Phe), which is a hydrophobic amino acid present in atmosphere. Information of hydration state of CaCl2-NPs and production of mixed CaCl2 + Phe nanoparticles was obtained using soft X-ray absorption spectroscopy (XAS) at Ca 2p, Cl 2p, C 1s, and O 1s edges. We also report Ca 2p and Cl 2p X-ray absorption spectra of an aqueous CaCl2 solution. The O 1s X-ray absorption spectra measured from hydrated CaCl2-NPs resemble liquid-like water spectrum, which is heavily influenced by the presence of ions. Core level spectra of Ca2+ and Cl- ions do not show a clear dependence of % RH, indicating that the first coordination shell remains similar in all measured hydrated CaCl2-NPs, but they differ from aqueous solution and solid CaCl2.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000609773700022
WOS关键词	SOLVATION STRUCTURE ; AMINO-ACIDS ; WATER ; AEROSOL ; SPECTRA ; SHELL ; DELIQUESCENCE ; PHENYLALANINE ; DIFFRACTION ; CA2+
WOS类目	Chemistry, Multidisciplinary
WOS研究方向	Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348154
作者单位	[Abid, Abdul Rahman; Reinhardt, Maximilian; Boudjemia, Nacer; Pelimanni, Eetu; Huttula, Marko; Patanen, Minna] Univ Oulu, Nano & Mol Syst Res Unit, Fac Sci, POB 3000, Oulu 90570, Finland; [Abid, Abdul Rahman; Saak, Clara-Magdalena; Bjorneholm, Olle] Uppsala Univ, Mol & Condensed Matter Phys, Angstromlab, S-75237 Uppsala, Sweden; [Milosavljevic, Aleksandar R.] LOrme Merisiers, SOLEIL Synchrotron Facil, BP 48, F-91190 St Aubin, France
推荐引用方式 GB/T 7714	Abid, Abdul Rahman,Reinhardt, Maximilian,Boudjemia, Nacer,et al. The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy[J],2021,11(4):2103-2111.
APA	Abid, Abdul Rahman.,Reinhardt, Maximilian.,Boudjemia, Nacer.,Pelimanni, Eetu.,Milosavljevic, Aleksandar R..,...&Patanen, Minna.(2021).The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy.RSC ADVANCES,11(4),2103-2111.
MLA	Abid, Abdul Rahman,et al."The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy".RSC ADVANCES 11.4(2021):2103-2111.