• Comparative electrochemistry of phenothiazine dyes incorporated into Nafion and poly(styrenesulfonate) films

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Electrochemistry; spectroelectrochemistry; phenothiazine dyes; Nafion; poly(styrenesulfonate)

    • Abstract


      The electrochemical properties of phenothiazine dyes, thionine (TH+) and methylene blue (MB+), incorporated into Nafion and PSS films were studied. These dyes showed different electrochemical behaviour in Nafion film when compared to aqueous solution and PSS film. The observed electrochemical behaviour has been explained by the interaction of reduced TH+ and MB+ molecules with different regions of the Nafion film. In the PSS film, the incorporated dye molecules experienced purely a hydrophilic environment and showed electrochemical properties similar to that of aqueous solution. Further, the interaction of the reduced MB+ molecules with the hydrophobic fluorocarbon region of the Nafion film was studied by spectroelectrochemistry adding 2-propanol to the supporting electrolyte solution.

    • Author Affiliations


      S Abraham John1 R Ramaraj1

      1. School of Chemistry, Madurai Kamaraj University, Madurai - 625 021, India
    • Dates

  • Journal of Chemical Sciences | News

© 2021-2022 Indian Academy of Sciences, Bengaluru.