Molecular interactions at the hexadecane/water interface in the presence of surfactants studied with second harmonic generation
Sang, YJ (Sang, Yajun); Yang, FY (Yang, Fangyuan); Chen, SL (Chen, Shunli); Xu, HB (Xu, Hongbo); Zhang, S (Zhang, Si); Yuan, QH (Yuan, Qunhui); Gan, W (Gan, Wei); Yuan, QH
2015
Source PublicationJOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
Volume142Issue:22
AbstractIt is important to investigate the influence of surfactants on structures and physical/chemical properties of oil/water interfaces. This work reports a second harmonic generation study of the adsorption of malachite green (MG) on the surfaces of oil droplets in a hexadecane/water emulsion in the presence of surfactants including sodium dodecyl sulfate, polyoxyethylene-sorbitan monooleate (Tween80), and cetyltrimethyl ammonium bromide. It is revealed that surfactants with micromolar concentrations notably influence the adsorption of MG at the oil/water interface. Both competition adsorption and charge-charge interactions played very important roles in affecting the adsorption free energy and the surface density of MG at the oil/water interface. The sensitive detection of the changing oil/water interface with the adsorption of surfactants at such low concentrations provides more information for understanding the behavior of these surfactants at the oil/water interface.
DOI10.1063/1.4922304
Indexed BySCI
WOS IDWOS:000356176600032
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4290
Collection中国科学院特殊环境功能材料与器件重点试验室
Corresponding AuthorYuan, QH
AffiliationChinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Key Lab Funct Mat & Devices Special Environm, Urumqi, Peoples R China;Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Sang, YJ ,Yang, FY ,Chen, SL ,et al. Molecular interactions at the hexadecane/water interface in the presence of surfactants studied with second harmonic generation[J]. JOURNAL OF CHEMICAL PHYSICS,2015,142(22).
APA Sang, YJ .,Yang, FY .,Chen, SL .,Xu, HB .,Zhang, S .,...&Yuan, QH.(2015).Molecular interactions at the hexadecane/water interface in the presence of surfactants studied with second harmonic generation.JOURNAL OF CHEMICAL PHYSICS,142(22).
MLA Sang, YJ ,et al."Molecular interactions at the hexadecane/water interface in the presence of surfactants studied with second harmonic generation".JOURNAL OF CHEMICAL PHYSICS 142.22(2015).
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