Liquid-liquid phase separation in internally mixed magnesium sulfate/glutaric acid particles
文献类型：期刊论文
| 作者 | Wu, Feng-Min1,2; Wang, Xiao-Wei1,2; Jing, Bo3; Zhang, Yun-Hong1; Ge, Mao-Fa3,4,5 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 178页码:286-292 |
| 关键词 | Liquid-liquid Phase Separation Raman Spectra Magnesium Sulfate Glutaric Acid |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2018.02.012 |
| 英文摘要 | The confocal Raman microscopy is utilized to investigate the liquid-liquid phase separation (LLPS) of mixed magnesium sulfate/glutaric acid (MgSO4/GA) droplets deposited on a hydrophobic polytetrafluoroethylene (PTFE) substrate and a hydrophilic quartz substrate. Raman spectra collected from different regions of the mixed droplets provide detailed information of component distributions for MgSO4 and GA. During the dehydration process, the MgSO4/GA mixed particles show the initial liquid-liquid phase separation between 85% and 80% relative humidity (RH) on both the hydrophobic and hydrophilic substrates. For the droplets deposited on the two substrates, the inner phase of droplets is dominated by aqueous MgSO4, which is surrounded by a rich GA organic layer due to the surface tension effects. In addition, the crystallization of GA could be observed in the organic aqueous phase while it is inhibited in the inner MgSO4 phase due to the effects of gel formation of MgSO4 at low RH. The Raman spectra reveal that with decreasing RH the morphology of the mixed droplet evolves from a uniform droplet to the structure of LLPS with the GA crystallizing in the outer layer and MgSO4 gel formed in the inner phase. These findings contribute to the further understanding of the role of interactions between inorganic salts and organic acids on the morphological evolution and environmental effects of atmospheric aerosols under ambient RH conditions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000428104200031 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46009]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Yun-Hong; Ge, Mao-Fa |
| 作者单位 | 1.Beijing Inst Technol, Sch Chem & Chem Engn, Inst Chem Phys, Key Lab Cluster Sci, Beijing 100081, Peoples R China 2.Henan Univ Sci & Technol, Sch Chem Engn & Pharmaceut, Luoyang 471023, Peoples R China 3.Chinese Acad Sci, Educ Ctr Excellence Mol Sci, Inst Chem,BNLMS,CAS Res, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Feng-Min,Wang, Xiao-Wei,Jing, Bo,et al. Liquid-liquid phase separation in internally mixed magnesium sulfate/glutaric acid particles[J]. ATMOSPHERIC ENVIRONMENT,2018,178:286-292. |
| APA | Wu, Feng-Min,Wang, Xiao-Wei,Jing, Bo,Zhang, Yun-Hong,&Ge, Mao-Fa.(2018).Liquid-liquid phase separation in internally mixed magnesium sulfate/glutaric acid particles.ATMOSPHERIC ENVIRONMENT,178,286-292. |
| MLA | Wu, Feng-Min,et al."Liquid-liquid phase separation in internally mixed magnesium sulfate/glutaric acid particles".ATMOSPHERIC ENVIRONMENT 178(2018):286-292. |
入库方式： OAI收割
来源：化学研究所
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