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Journal of Electrochemical Science and Engineering, Vol. 14 No. 5, 2024.

Original scientific paper

https://doi.org/10.5599/jese.2350

Design of high-performance electrochemical sensor based on SnS2 nanoplates and ionic liquid-modified carbon paste electrode for determination of hydrazine in water samples

Afsaneh Haji Alizadeh orcid id orcid.org/0000-0001-5688-1511 ; Department of Natural Resources, Sirjan Branch, Islamic Azad University, Sirjan, Iran
Samaneh Salemi Najaf Abadi ; Department of Basic Science, Sirjan Branch, Islamic Azad University, Sirjan, Iran
Abdulhamid Morshidi Nozar ; Department of Chemical Engineering, Sirjan Branch, Islamic Azad University, Sirjan, Iran

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Abstract

Designing effective and accurate analytical techniques to determine hydrazine is essential for preserving the environment. Herein, an electrochemical sensor based on a carbon paste electrode (CPE) modified with SnS2 nanoplates (SnS2NPs) and ionic liquid (IL) was presented for determination of hydrazine in water samples. The SnS2NPs were synthesized using the hydrothermal method and characterized through field emission scanning electron microscope, Fourier transform infrared spectrometer and energy dispersive spectroscopy. The use of cyclic voltammetry in electrochemical investigations has shown that incorporating IL and SnS2NPs in an electrochemical sensor significantly improves its efficiency. These results in a considerable increase in the oxidation peak current and a decrease in the oxidation peak potential of hydrazine compared to an unmodified CPE. The method of differential pulse voltammetry was utilized to accurately measure the quantity of hydrazine. The SnS2NPs/ILCPE showed improved sensing capabilities, resulting in a noticeable sensitivity of 0.0747 µA/µM and a low limit of detection of 0.05 µM for a broad linear range of hydrazine concentration from 0.08 µM to 450.0 µM. In addition, the SnS2NPs/ILCPE sensor was successfully utilized to measure the amount of hydrazine present in water samples, with a recovery range of 96.0 to 104.4 %. The relative standard deviation was found to be lower than 3.6 % (n = 5), indicating that the developed sensor is suitable for accurately determining hydrazine in water samples with high sensitivity.

Keywords

Hrčak ID:

321288

URI

https://hrcak.srce.hr/321288

Publication date:

1.10.2024.

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