Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    A new and consistent model for dynamic adsorption of CTAB at air/water interface

    Access Status
    Fulltext not available
    Authors
    Phan, Chi
    Le, Thu
    Yusa, S.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Phan, Chi M. and Le, Thu N. and Yusa, Shin-ichi. 2012. A new and consistent model for dynamic adsorption of CTAB at air/water interface. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 406: pp. 24-30.
    Source Title
    Colloids and Surfaces A - Physicochemical and Engineering Aspects
    DOI
    10.1016/j.colsurfa.2012.04.044
    ISSN
    0927-7757
    URI
    http://hdl.handle.net/20.500.11937/30336
    Collection
    • Curtin Research Publications
    Abstract

    A new and simple equation, with only one parameter, was developed to model the equilibrium surface tension of the air/cetyltrimethylammonium bromide (CTAB) solution interface. The new equilibrium model provides a single best-fitted prediction, instead of several solutions obtained by the conventional Szyszkowski equation. Subsequently, the equation was used to develop a new dynamic model, which does not require a Gibbs adsorption isotherm. The diffusion coefficient of CATB was also independently measured by 1H NMR and used as an input for the new dynamic model. The new model was applied to dynamic surface tension data at 2 different concentrations simultaneously to obtain best-fitted values for adsorption parameters. The modeling result was consistent with all experimental results. In contrast to previous studies in the literature, the new model predicts dynamic surface tension of CTAB successfully by a diffusion-controlled mechanism and a kinetics step was not required. The study provides a new and effective dynamic model for dynamic surface tension at the air/water interface.

    Related items

    Showing items related by title, author, creator and subject.

    • An unusual synergistic adsorption of MIBC and CTAB mixtures at the air–water interface
      Le, Ngoc Thu; Phan, Chi; Nguyen, A.; Ang, Ming (2012)
      Flotation collectors and frothers are known to synergistically adsorb at the air–water interface and reduce surface tension. Here we report an unusual synergistic adsorption of cetyl trimethyl ammonium bromide (CTAB) and ...
    • Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface
      Salamah, Abdulsalam Hassan Ahmed; Phan, Chi; Pham, H. (2015)
      © 2015 Elsevier B.V. The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/water interface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysis ...
    • Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface
      Salamah, A.; Phan, Chi; Pham, H. (2015)
      The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/waterinterface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysissoftware and then were ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.