CAS OpenIR
In situ study of the competitive adsorption of ions at an organic-aqueous two-phase interface: the essential role of the Hofmeister effect
Sun, Pan2,3; Huang, Kun1,2; Liu, Huizhou2
2019-06-07
Source PublicationSOFT MATTER
ISSN1744-683X
Volume15Issue:21Pages:4346-4350
AbstractUnderstanding of the microcosmic essence of the competitive adsorption of different ions at liquid/ liquid interfaces is of crucial importance for the elucidation of the unique chemical reactivities or selectivities of ions in numerous heterogeneous chemical processes. However, the knowledge of the microscopic mechanism behind the competitive adsorption of ions at the liquid/liquid interface is lacking. Herein, the competitive adsorption of various inorganic salt anions at organic-aqueous twophase interfaces has been investigated as compared to that of the CrO4 2 ions by total internal reflection UV-visible (TIR-UV) spectroscopy since CrO4 2 ions are detectable by UV-visible spectroscopy and have a relatively poor interface propensity as compared to other chaotropic ions. Experimental results indicate that the interface propensities of different salt anions to the organic/aqueous phase interface follow the Hofmeister series. Molecular dynamics simulations further provided molecular-level evidence for role of the Hofmeister series of ions in the competitive adsorption of salt anions at organic-aqueous two-phase interfaces; the present study provided the first-hand experimental evidence demonstrating the occurrence of the Hofmeister series effect at the organic/aqueous two-phase interfaces, influencing the competitive adsorption of different salt ions; moreover, it is expected to offer a basis for the development of new strategies for the regulation of the chemical reactivity and selectivity of ions at organic/aqueous phase interfaces by introduction of other ions for competitive adsorption.
DOI10.1039/c9sm00007k
Language英语
WOS KeywordLIQUID-LIQUID INTERFACE ; SURFACTANTS ; SIMULATIONS ; MECHANISM ; FIELDS
Funding ProjectNational Natural Science Foundation of China[51574213] ; National Natural Science Foundation of China[51074150] ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)[2013CB632602] ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)[2012CBA01203]
WOS Research AreaChemistry ; Materials Science ; Physics ; Polymer Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science
Funding OrganizationNational Natural Science Foundation of China ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)
WOS IDWOS:000471018300009
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30084
Collection中国科学院过程工程研究所
Corresponding AuthorHuang, Kun
Affiliation1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sun, Pan,Huang, Kun,Liu, Huizhou. In situ study of the competitive adsorption of ions at an organic-aqueous two-phase interface: the essential role of the Hofmeister effect[J]. SOFT MATTER,2019,15(21):4346-4350.
APA Sun, Pan,Huang, Kun,&Liu, Huizhou.(2019).In situ study of the competitive adsorption of ions at an organic-aqueous two-phase interface: the essential role of the Hofmeister effect.SOFT MATTER,15(21),4346-4350.
MLA Sun, Pan,et al."In situ study of the competitive adsorption of ions at an organic-aqueous two-phase interface: the essential role of the Hofmeister effect".SOFT MATTER 15.21(2019):4346-4350.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, Pan]'s Articles
[Huang, Kun]'s Articles
[Liu, Huizhou]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, Pan]'s Articles
[Huang, Kun]'s Articles
[Liu, Huizhou]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, Pan]'s Articles
[Huang, Kun]'s Articles
[Liu, Huizhou]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.