Interaction between Anionic Dye ECAB, Micelle of Triton X-100 in Aqueous Solution and Hemimicelie at Solid/Liquid Interface
作者:
Yueying Gao,
Chunsong Yu,
Guohong An,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 2000)
卷期:
Volume 21,
issue 3
页码: 279-304
ISSN:0193-2691
年代: 2000
DOI:10.1080/01932690008913267
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Interaction between dye (ECAB), nonionic surfactant (TX-100) micelle in aqueous solution and TX-100 hemimicelie at solid (SiO2)/liquid interface has been investigated quantitatively. There are linear relationships between concentrations of free ECAB(Ca), ECAB bound with TX-100 micelles in solution(Cm) and ECAB bound with TX-100 hemimicelles at interface of solid/liquid(Chm). The slopes of the three straight lines are 0.32 for Chm∼Ca-1.32 for Cm∼Caand -1.00 for (Cm+Chm∼Carespectively. The linear relationships can be described by three linear equations as follows: Chm=0.32 (Ca−O.88×10−5),Cm.=4.0×10−5-l.33 Caand Chm+Cm=3.742×l0−5-Ca,. It is inferred that the interaction between ECAB, TX-100 micelles and TX-100 hemimicelles is essentially partition of ECAB molecules in solution, TX-100 micelles and hemimicelles. The concentration of ECAB bound with TX-100 micelles well as electronic repulsion. Additionally, A quantitative method to determine adsorbance of surfactant TX-100 on silica gel by spectroscopy in coadsorption conditions of dye (ECAB) and TX-100 was proposed.
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