Efficient Bisphenol-A detection based on the ternary metal oxide (TMO) composite by electrochemical approaches. (20th August 2017)

• Record Type: Journal Article
• Authors: Ahmed, Jahir; Rahman, Mohammed M.; Siddiquey, Iqbal A.; Asiri, Abdullah M.; Hasnat, Mohammad A.
• Is Part Of: Electrochimica acta. Volume 246(2017)
• Page Start: 597
• Page End: 605
• Publication Date: 2017-08-20
• Subjects: TMO nanocomposites -- Cyclic voltammetry -- Bisphenol-A -- Sensitivity -- Environmental safety; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.06.072
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Highlights: Ternary metal oxides (TMO) composites prepared by wet-chemical method. Highly sensitive and selective Bisphenol A (BPA) sensor by I–V method. Ultra-low detection limit was obtained by 3N/S. Real environmental samples were analyzed. Health care and environmental safety Abstract: A facile wet chemical method in basic medium was used to synthesis the ternary metal oxides (TMO; ZnO.CoO.FeO) composites at low temperature. The calcined TMO was characterized by FESEM, EDS, UV/vis., FTIR spectroscopy, EIS, and XRD systematically. Glassy carbon electrode (GCE) was modified with the TMO using 5% Nafion at room conditions. The resultant electrode was used for selective detection of Bisphenol-A (BPA) using cyclic voltammetry (CV). It was observed that the TMO electrode exhibited an excellent sensitivity (3.28 μAμM −1 cm −2 ), low detection limit (LOD: 1.2 ± 0.1 nM; S/N = 3), higher stability, very good repeatability, and reproducibility. In diagnostic exploration, a linear calibration plot was obtained for a wide range of concentration of BPA (LDR: 0.80 to 7.20 μM; r 2 : 0.99). This method represents an efficient way of sensitive sensor development for the detection of toxic and carcinogenic phenolic compounds.