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Bio-engineered sensing of Atrazine by green CdS quantum dots: Evidence from electrochemical studies and DFT simulations

Singh, S and Narasimhappa, P and Uppara, B and Behera, SK and Varshney, R and Naik, TSSK and Khan, NA and Singh, J and C Ramamurthy, P (2023) Bio-engineered sensing of Atrazine by green CdS quantum dots: Evidence from electrochemical studies and DFT simulations. In: Chemosphere, 345 .

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Official URL: https://doi.org/10.1016/j.chemosphere.2023.140465


The present investigation reports a comprehensible and responsive strategy for identifying atrazine in several conditions using an extensive electrochemical method. CdS Quantum dots were synthesized via a greener approach, and their formation was endorsed by numerous characterization techniques such as FTIR, SEM, Raman, UV�Vis, and XRD. Owing to the splendid electrocatalytic behavior, Green CdS quantum dots (QDs) of crystallite size �2 nm was opted as the sensor material and were, therefore, incorporated on the bare carbon paste electrode's surface. The developed sensor demonstrated an impressive outcome for atrazine sensing accompanied by superior selectivity and sensitivity. The lower detection limit (LLOD) of 0.53 μM was attained using the developed sensor in a linear concentration range of 10�100 μM. Furthermore, the practical pertinence of the developed sensor was examined on distilled water, wastewater, and fresh liquid milk, resulting in a tremendous retrieval of atrazine (91.33�99.8). © 2023 Elsevier Ltd

Item Type: Journal Article
Publication: Chemosphere
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd.
Keywords: Cadmium sulfide; Chemical detection; Crystallite size; II-VI semiconductors; Nanocrystals; Semiconductor quantum dots, Cds quantum dots(QDs); Characterization techniques; Condition; ELectrochemical detection; Electrochemical method; Electrochemical studies; FTIR; Green approach; Real time analysis; Synthesised, Herbicides, atrazine; distilled water; potassium chloride; potassium ferricyanide; quantum dot; atrazine; carbon; drinking water, atrazine; bioenergetics; detection method; electrochemical method; green economy; real time, absorption; adsorption; Article; bioengineering; biosynthesis; correlation coefficient; cyclic voltammetry; differential pulse voltammetry; electrochemical detection; electron transport; energy; Fourier transform infrared spectroscopy; geometry; hybridization; limit of detection; limit of quantitation; photoluminescence; Pseudomonas fluorescens; scanning electron microscopy; simulation; spectrofluorometry; stoichiometry; ultraviolet visible spectroscopy; X ray diffraction; chemistry; electrochemical analysis, Atrazine; Carbon; Drinking Water; Electrochemical Techniques; Quantum Dots
Department/Centre: Division of Interdisciplinary Sciences > Interdisciplinary Centre for Water Research
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 28 Feb 2024 09:27
Last Modified: 28 Feb 2024 09:27
URI: https://eprints.iisc.ac.in/id/eprint/83652

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