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Study of Adsorption of Sodium Dodecyl Sulfate on Alumina Using Surfactant Ion-selective Electrode

  • B.-X. Liu , W.-X. Wang , Y.-H. Lu and Z.-P. Du
Published/Copyright: April 5, 2013
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Abstract

The adsorption of sodium dodecyl sulfate (SDS) on alumina was studied by using the surfactant ion-selective electrode. The adsorbance could be calculated from the potential and concentration response characteristics of surfactant ion-selective electrode to get surfactant adsorption isotherm. Further experiment results show that the adsorbance was greatly influenced by pH of the solution. It is demonstrated that surfactant ion-selective electrode could be utilized to measure surfactant concentrations in solution after adsorption equilibrium without solid-liquid separation.

Kurzfassung

Die Adsorption von Natriumdodecylsulfat (SDS) auf Aluminiumoxid wurde mittels einer ionensensitiven Tensid-Elektrode untersucht. Das Adsorptionsvermögen kann durch das Ansprechverhalten von Potential und Konzentration der ionensensitiven Tensid-Elektrode berechnet werden, um die Adsorptionsisotherme der Tenside zu erhalten. Weitere experimentelle Ergebnisse ergeben, dass das Adsorptionsvermögen in hohem Maße durch den pH der Lösung beeinflusst wird. Es wird gezeigt, dass die ionensensitive Tensid-Elektrode zur Messung der Tensidkonzentration in Lösung nach dem Adsorptionsgleichgewicht ohne Fest-Flüssig-Trennung genutzt werden kann.


Wan-xu Wang, China Research Institute of Daily Chemical Industry, Taiyuan 030001, Shanxi Province, P.R. China, Tel.: +86-351-4070043. E-mail:

Bi-Xin Liu is reading for Master degree at China Research Institute of Daily Chemical Industry. His research fields centred at the preparation and application of surfactant ion-selective electrode.

Wan-xu Wang is the dean of China Research Institute of Daily Chemical Industry. He is engaged in synthesis and application of surfactants.

Yong-hai Lu is a professor of China Research Institute of Daily Chemical Industry. His main field of research is physical chemistry properties of surfactants.

Zhi-ping Du is also a professor of China Research Institute of Daily Chemical Industry. Her research fields centred at surfactant and nano-materials research.


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Received: 2007-12-18
Published Online: 2013-04-05
Published in Print: 2008-07-01

© 2008, Carl Hanser Publisher, Munich

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