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Confined Complexation Reaction of Metal Ions with a Lipophilic Surfactant at the Water/Air Interface: A New Understanding Based on Surface Experiments and Molecular Dynamics Simulations
Sun, Pan2,3; Huang, Kun1,2; Wang, Xinping4; Yu, Jiemiao2; Diat, Olivier5; Liu, Huizhou2
2019-04-02
Conference Name15th Pacific Polymer Conference (PPC)
Source PublicationLANGMUIR
Volume35
Issue13
Pages4548-4556
Conference DateDEC 10-14, 2017
Conference PlaceXiamen, PEOPLES R CHINA
Author of SourcePacific Polymer Federat
Funding OrganizationNational Natural Science Foundation of China ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)
PublisherAMER CHEMICAL SOC
AbstractUnderstanding the fundamentals of confined chemical reaction was an important subject in various heterogeneous physicochemical processes. Here, we investigated the orientation behavior of an amphiphilic ligand, the tri-n-octylphosphine oxide (TOPO), in a compressed monolayer at the air/water interface and its impact on the complexation reactivity of TOPO molecules with chromate ions at the interface. The analysis of sum frequency generation and polarization modulation infrared reflection absorption spectroscopy experiments combined with surface pressure measurements reveals a significant dependence of the adsorption rate and saturated concentration of chromate ions on the orientation of TOPO molecules during the increase of the surface pressure. In parallel, the analysis of molecular dynamics simulations indicates that the interaction energy between TOPO molecules and chromate ions is strongly sensitive to the orientation of TOPO molecules confined at the water/air interface. The present work provides a novel insight into the unique chemical reactivity of molecules in a confined microenvironment, and it provides a basis for further progresses in improving chemical reactivity and selectivity of molecules in a confined environment by regulating confinement of molecules.
DOI10.1021/acs.langmuir.9b00452
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]
Language英语
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000463679300017
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28971
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, 30 Xueyuan Rd, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Zhejiang Sci Tech Univ, Educ Minist, Key Lab Adv Text Mat & Mfg Technol, Dept Chem, Hangzhou 310018, Peoples R China
5.CEA, CNRS, UMR 5257, Inst Chim Separat Marcoule,UM,ENSCM, BP 17171, F-30207 Bagnols Sur Ceze, France
Recommended Citation
GB/T 7714
Sun, Pan,Huang, Kun,Wang, Xinping,et al. Confined Complexation Reaction of Metal Ions with a Lipophilic Surfactant at the Water/Air Interface: A New Understanding Based on Surface Experiments and Molecular Dynamics Simulations[C]//Pacific Polymer Federat:AMER CHEMICAL SOC,2019:4548-4556.
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