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

    An examination of the one-parameter adsorption equation without using the Gibbs adsorption equation

    Access Status
    Fulltext not available
    Authors
    Casandra, A.
    Tsay, R.
    Phan, Chi
    Lin, S.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Casandra, A. and Tsay, R. and Phan, C. and Lin, S. 2017. An examination of the one-parameter adsorption equation without using the Gibbs adsorption equation. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 512: pp. 137-144.
    Source Title
    Colloids and Surfaces A: Physicochemical and Engineering Aspects
    DOI
    10.1016/j.colsurfa.2016.10.030
    ISSN
    0927-7757
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/58493
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 Elsevier B.V. The study of surfactant adsorption kinetics at a gas-liquid interface has essentially been built with the Gibbs adsorption equation. A simple one-parameter adsorption equation without using the Gibbs adsorption equation was proposed and tested on surfactants C 14 TAB and C 16 TAB [Phan et al., Colloids Surfaces A 406 (2012) 24 and Langmuir 29 (2013) 4743] to describe equilibrium surface tension. The applicability of this one-parameter adsorption equation was examined in this study. Theoretical equilibrium surface tension (ST) of nonionic and ionic surfactants generated from the Langmuir and Frumkin isotherms and several sets of experimental ST data were compared with the one-parameter adsorption equation. This study demonstrates that this one-model adsorption equation predicts the equilibrium ST of the aqueous surfactant solutions well following: (i) the nonionic Langmuir isotherm with G 8  ~ 20 × 10 -10  mol/cm 2 or (ii) the nonionic Frumkin isotherm with a specific correlation between maximum surface concentration and intermolecular interaction, K = 0.12 (G 8  × 10 10 ) - 2.6. It is concluded from this study that the one-parameter adsorption equation is not a general predictive model and cannot describe general equilibrium ST data except under the above conditions.

    Related items

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

    • Treatment of oily and dye wastewater with modified barley straw
      Che Ibrahim, Shariff (2010)
      Barley straw, an agricultural byproduct, was identified as a potential adsorbent material for wastewater treatment as it offers various advantages such as abundant availability at no or very low cost, little processing ...
    • Removal of ZN (II) Metal Ions From Aqueous Solution By Aluminium Oxide (AL2 O3): A Kinetic And Equilibrium Study
      Sen, Tushar; Mei, C. (2012)
      In this work the adsorptive properties of aluminium oxide in the removal of zinc (Zn2+) from aqueous solution have been studied by laboratory batch adsorption kinetic and equilibrium experiments.The results show that the ...
    • Influence of molecular structure on the adsorption of surfactants at water/air interface
      Le, Ngoc Thu (2012)
      Surfactants are widely use in our daily activities such as in mineral separation, water purification, petroleum refining/processing, etc. Surfactants behaviour at the gas/liquid interface is one of the interesting research ...
    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.