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Determination of Critical Micelle Concentrations of Surfactants by Terahertz Time-Domain Spectroscopy

文献类型：期刊论文

作者Yan, Shihan1; Wei, Dongshan1; Tang, Mingjie1; Shi, Changcheng1; Zhang, Mingkun1; Yang, Zhongbo1; Du, Chunlei1; Cui, Hong-Liang1,2
刊名IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
出版日期2016-07-01
卷号6期号:4页码:532-540
关键词Absorption coefficient criticalmicelle concentration (CMC) refractive index surfactant terahertz time-domain spectroscopy (THz-TDS)
ISSN号2156-342X
DOI10.1109/TTHZ.2016.2575450
通讯作者Wei, DS (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China.
英文摘要A novel detection method is presented to determine the critical micelle concentrations (CMCs) of surfactants by using a simple and convenient terahertz time-domain spectroscopy (THz-TDS) technology which has been successfully used to study the picosecond dynamics of water in reverse micelles. Absorption coefficients or refractive indices of aqueous solutions of an ionic surfactant sodium dodecyl sulfate and a nonionic surfactant nonaethylene glycol monododecyl ether in 0.2-1.8 THz frequency range at different concentrations are measured through the THz-TDS. A clear intersection of THz absorption coefficient or refractive index caused by the micelle formation is observed. This phenomenon is strongly associated with the change of component ratio between surfactant, bulk water and hydration water during the formation of micelles. The corresponding concentration is determined as the CMC of the surfactant which is in good agreement with the most existing results using traditional methods. For comparison, absorption coefficients of the two surfactants in hydrochloric acid solutions are also measured and differences in contrast to those in aqueous solutions are observed and explained. Our findings indicate that THz spectroscopy technology can be applied to determine the CMCs of surfactants in a sensitive, accurate, and label-free way. Index Terms-Absorption coefficient, criticalmicelle concentra-
资助项目National 973 Program of China[2015CB755401] ; Fundamental & Advanced Research Project of Chongqing, China[cstc2013jcyjC00001] ; National Natural Science Foundation of China[21407145] ; National Natural Science Foundation of China[31400625] ; Application Development Project of Chongqing, China[cstc2013yykfC00007] ; Scientific Equipment Research Project of Chinese Academy of Sciences (Development of THz imaging spectrometer for biomacromolecules)
WOS研究方向Engineering ; Optics ; Physics
语种英语
WOS记录号WOS:000384913500004
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://119.78.100.138/handle/2HOD01W0/2898]  
专题太赫兹技术研究中心
通讯作者Wei, Dongshan
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China
2.Jilin Univ, Coll Instrumentat Sci & Elect Engn, Changchun 130061, Jilin, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Shihan,Wei, Dongshan,Tang, Mingjie,et al. Determination of Critical Micelle Concentrations of Surfactants by Terahertz Time-Domain Spectroscopy[J]. IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,2016,6(4):532-540.
APA Yan, Shihan.,Wei, Dongshan.,Tang, Mingjie.,Shi, Changcheng.,Zhang, Mingkun.,...&Cui, Hong-Liang.(2016).Determination of Critical Micelle Concentrations of Surfactants by Terahertz Time-Domain Spectroscopy.IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,6(4),532-540.
MLA Yan, Shihan,et al."Determination of Critical Micelle Concentrations of Surfactants by Terahertz Time-Domain Spectroscopy".IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 6.4(2016):532-540.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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