Cyclic voltammetric behavior of crystal violet in aqueous solution: Correlation with dissolved states of cetyltrimethylammonium bromide

Authors

  • Neamul H Khansur Department of Chemistry, University of Dhaka, Bangladesh; Institute of Glass and Ceramics, Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße, Erlangen, Germany.
  • Iqbal Mahmud Department of Electrical and Electronic Engineering, Eastern University, Dhaka, Bangladesh.
  • A J F Samed Department of Chemistry, Shahjalal University of Science and Technology, Sylhet, Bangladesh
  • Md Nizam Uddin Department of Chemistry, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
  • Md Abul Kalam Department of Natural Sciences, Texas A&M University-Texarkana, Texarkana, USA
  • Md Abu Bin Hasan Susan Department of Chemistry, University of Dhaka, Dhaka, Bangladesh;Dhaka University Nanotechnology Centre (DUNC), University of Dhaka, Bangladesh https://orcid.org/0000-0003-0752-1979

DOI:

https://doi.org/10.3329/jbas.v48i1.69481

Keywords:

Cyclic voltammetry, Crystal violet, Platinum electrode, CTAB, micelle, pH

Abstract

The cyclic voltammetric method was employed to study the electrochemical behavior of aqueous crystal violet in the presence of cetyltrimethylammonium bromide, both below and above the critical micelle concentration. The cyclic voltammograms were highly sensitive to solution pH exhibiting well-defined oxidation and reduction peaks within the pH range of 1.76 to 2.29. The electrochemical potentials and currents indicate the involvement of a set of reactions responsible for the observed voltammograms. The diquinoid of N, N, N’, N’- tetramethylbenzidine was formed, which was reduced to N, N, N’, N’- tetramethylbenzidine. The presence of CTAB profoundly influenced the electrochemical behavior, and responses were found to depend on the dissolved states of CTAB. The electrochemical process was diffusion-controlled and followed a chemical-electrochemical-chemical (CEC) mechanism.

J. Bangladesh Acad. Sci. 48(1); 75-83: June 2024

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Published

2024-06-15

How to Cite

Khansur, N. H., Mahmud, I., Samed, A. J. F., Uddin, M. N., Kalam, M. A., & Susan, M. A. B. H. (2024). Cyclic voltammetric behavior of crystal violet in aqueous solution: Correlation with dissolved states of cetyltrimethylammonium bromide. Journal of Bangladesh Academy of Sciences, 48(1), 75–83. https://doi.org/10.3329/jbas.v48i1.69481

Issue

Vol. 48 No. 1 (2024)

Section

Research Articles