Tailoring of Novel Amorphous RuS 2 /ZrS 2 /MWCNT Nanocomposite Platform as a Dual Sensor for the Detection for Water Pollutant Indigo Carmine

• Published in: Journal of the Electrochemical Society Vol. 171; no. 8; p. 87508
• Main Authors: Sajeevan, Bhama, M G, Gopika, Murali, Aswathy S., Sreelekshmi, G, Saraswathyamma, Beena, Govindasamy, Mani
• Format: Journal Article
• Language: English
• Published: 01.08.2024
• ISSN: 0013-4651; 1945-7111
• DOI: 10.1149/1945-7111/ad6b4b

The present study focuses on synthesizing amorphous nanocomposites of RuS 2 /ZrS 2 /MWCNT and exploring their potential for modifying electrodes and detecting indigo carmine dyestuff. Amorphous materials have recently garnered significant attention due to their ability to control material properties through their distinct nature. Transition metal dichalcogenides, or TMDs, are being extensively used in various applications such as catalysis, dye degradation, and so on. Amorphous transition metal sulphides, due to their heightened active sites, exhibit higher performance. This study presents the first-ever successful production of two amorphous metal sulphides that are doped with multi-walled carbon nanotubes. The resulting novel material was used to detect indigo carmine with high efficiency. The detection range was wide, spanning from 0.1 μM to 300.0 μM, and the limit of detection was 0.08 μM. These results demonstrate that the material outperforms most previously reported studies in this field. The technique employed was both simple and innovative, and it was used on both Glassy Carbon Electrode (GCE) and Screen-Printed Electrode (SPE) systems. It was effectively evaluated for the detection of the dye in water samples as well as food and pharmaceutical samples. Highlights For the first time reporting an electrochemical sensor modified with two transition metal disulphides in their amorphous form for the detection of Indigo Carmine Dye. The sensor showed superior linear range of 0.1–300.0 μM concentrations of the dye for Glassy Carbon Electrode Simultaneous fabrication of a Screen-Printed Electrode was also reported which gave a linear range of 5.0–100.0 μM concentrations of the analyte.