Electrochemical determination of zirconium ions using 1-(2-hydroxy-1-naphthoyazo)-2-naphthol-4-sulphonic acid as a novel reagent
Tursunqulov J. Qutlimurotova N. Fayzullayeva M. Berdimurodov E. Raximov S. Smanova Z. Dadamatov A. Aliev N. Hosseini-Bandegharaei A.
2025Taylor and Francis Ltd.
International Journal of Environmental Analytical Chemistry
2025#105Issue 122916 - 2939 pp.
This study presents a comprehensive research to determine zirconium ions using an electrochemical approach, employing 1-(2-hydroxy-1-naphthoyazo)-2-naphthol-4-sulphonic acid (HNSA) as a reagent. The research is significant, given the widespread use of zirconium in industries such as ceramics, lasers, catalysts, and more, and the need for its extraction from technological wastes. The study utilised chronoamperometry, Tafel, and electrochemical impedance spectroscopy to understand the reaction mechanisms involved in the amperometric determination of zirconium ions. The results revealed that the electrooxidation of the chosen reagent occurs at 1.0 volts, as assessed by the chronoamperometric method. Additionally, the half-wave potential was found to be equal to 0.47 volts at pH 2.58 by the cyclic voltammetric method. The study confirmed that the reaction is irreversible and that the complexation of zirconium ions with the reagent is not interfered with by the presence of Bi3+, Cd2+, Pb2+, and Fe2+ cations in a 1:1 ratio. This research provides a reliable, efficient, and cost-effective method for the determination of zirconium ions, offering significant implications for industries dealing with zirconium.
1-(2-hydroxy-1-naphthoyazo)-2-naphthol-4-sulphonic acid , chronoamperometry , electrochemical determination , electrochemical impedance spectroscopy and amperometric titration , Tafel , Zirconium ion
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Faculty of Chemistry, National University of Uzbekistan, Tashkent, Uzbekistan
Department of Power Industry and Health and Safety, Faculty of Engineering and Ecology Health and Safety, Environment Protection, Korkyt Ata Kyzylorda University, Kyzylorda, Kazakhstan
Chemical & Materials Engineering, New Uzbekistan University, Tashkent, Uzbekistan
Faculty of Pedagogy, University of Tashkent for Applied Sciences, Tashkent, Uzbekistan
Copper Melting and Sulfate-Acid, Almalyk mining and metallurgical complex joint stock company, Almalyk, Uzbekistan
Faculty of Pedagogy, Tashkent State University of Economics, Tashkent, Uzbekistan
Faculty of Chemistry, Semnan University, Semnan, Iran
Faculty of Chemistry
Department of Power Industry and Health and Safety
Chemical & Materials Engineering
Faculty of Pedagogy
Copper Melting and Sulfate-Acid
Faculty of Pedagogy
Faculty of Chemistry
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