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

doi:10.1021/acs.langmuir.9b00452

	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, Pan 2,3; Huang, Kun 1,2; Wang, Xinping 4; Yu, Jiemiao 2; Diat, Olivier 5; Liu, Huizhou 2
	2019-04-02
会议日期	DEC 10-14, 2017
会议地点	Xiamen, PEOPLES R CHINA
卷号	35
期号	13
DOI	10.1021/acs.langmuir.9b00452
页码	4548-4556
英文摘要	Understanding 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.
源文献作者	Pacific Polymer Federat
会议录	LANGMUIR
资助机构	National Natural Science Foundation of China ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)
会议录出版者	AMER CHEMICAL SOC
语种	英语
资助项目	National 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]
ISSN号	0743-7463
WOS研究方向	Chemistry ; Materials Science
WOS记录号	WOS:000463679300017
WOS关键词	MULTICOMPONENT ACIDIC-SOLUTIONS ; SUM-FREQUENCY ; CARBON NANOTUBES ; LANGMUIR-BLODGETT ; CHROMIUM VI ; PM-IRRAS ; ORIENTATION ; LIQUID ; TOPO ; ENVIRONMENT
内容类型	会议论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28971]
专题	中国科学院过程工程研究所
通讯作者	Huang, Kun
作者单位	1.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
推荐引用方式 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]. 见:. Xiamen, PEOPLES R CHINA. DEC 10-14, 2017.