Izvorni znanstveni članak

https://doi.org/10.5562/cca2688

Adsorption of N-decanoyl-N-methylglucamine at the Interface Electrode−NaClO₄ Solution. Comparison of Adsorption Properties of Different Surfactants

Dorota Gugała-Fekner ; Faculty of Chemistry, Maria Curie-Sklodowska University, Lublin, Poland

Sažetak

The electrosorption behaviour of non-ionic surfactant: N-decanoyl-N-methylglucamine on mercury electrode in 1 mol dm−3 NaClO₄ solution was determined. The values of the relative surface excess were determined on the basis of double layer differential capacity. A set of parameters of maximal adsorption and the constants of Frumkin, modified Flory-Huggins and virial adsorption isotherms were obtained. It was stated that the adsorption of this surfactant is determined by the adsorption energy, however here is no simple relation between a surface excess and the values of repulsive interactions parameter A. Adsorption properties of three surfactants: cationic, anionic and non-ionic were compared.

This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

electrochemistry; differential capacity; surface; adsorption isotherm; electrosorption; non-ionic surfactant

Hrčak ID:

158794

URI

https://hrcak.srce.hr/158794

Datum izdavanja:

20.6.2016.

Posjeta: 1.605 *