Abstract
Development of new electrode materials is necessary for the fabrication of sensors with low detection limits, high sensitivity and broad concentration range. Beside analytical parameters, the ability to replace rare and expensive metals, without additional pollution, is also expected from new materials. Materials based on non-toxic raw materials are presented in this paper. Clay-polymer nanocomposites consisting of Wyoming clay rich in montmorillonite and different loadings of poly(vinyl alcohol) (PVA) (10wt% and 20wt%, i.e. PVA10-W and PVA20-W samples) were synthesized. The intercalation of PVA into montmorillonite was confirmed by elemental, XRD and SEM analysis. The electrochemical behavior of synthesized electrode materials was tested using the electrochemical impedance spectroscopy and cyclic voltammetry. It was found that PVA/montmorillonite ratio influenced the performance of the composite-modified electrode. The detection of 4-chlorophenol and 4-nitrophenol on the investigated electrodes was tested using the square wave voltammetry. The analytical application of the electrodes was evaluated on a river water sample.
Sign-in/Register to access full text options 
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.
