Abstract
AbstractA macroporous indium tin oxide (ITO) electrode has been obtained by electrospinning nanofibers from polyvinylpyrrolidone and ITO precursors on a fused silica substrate covered by polystyrene, followed by a heat treatment that induced a drastic modification in the material texture. The resulting electrode structure is consisting of highly interconnected nanofilaments of sizes between 70 and 170 nm. The electrode is robust, fixed to the substrate, transparent in the visible light region, and possesses excellent electrochemical properties in comparison to a planar ITO electrode, that is, improved reversibility with ferrocenedimethanol and greatly enhanced oxidation for ascorbic acid. SEM and XRD measurements confirm ITO formation. This porous ITO electrode can be modified electrochemically with mesostructured methylated silica and applied to a combined electrochemical and spectral detection of industrial dyes (methylene blue, Meldola's blue, and methylene green) from water. For methylene blue analysis, a linear range of detection between 20 nM and 2 μM and a limit of detection of 17 nM are observed. Finally, the spectroelectrochemical analysis of a solution with mixed dyes has been performed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
