Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/189556
Title: | Antimony nanomaterials modified screen-printed electrodes for the voltammetric determination of metal ions |
Author: | Tapia, María A. Pérez Ràfols, Clara Pastika, Jan Gusmão, Rui Jorge Coelho Serrano i Plana, Núria Sofer, Zdenek Díaz Cruz, José Manuel |
Keywords: | Voltametria Antimoni Ions metàl·lics Voltammetry Antimony Metal ions |
Issue Date: | 7-Jun-2022 |
Publisher: | Elsevier Ltd |
Abstract: | Exfoliated β-Sb or two dimensional (2D) antimonene-based modified screen-printed electrode (2D Sb-SPCE), prepared by drop-casting of an exfoliated layered β-antimony (2D Sb) suspension, was used for the simultaneous determination of Pb(II) and Cd(II) by differential pulse anodic stripping voltammetry (DPASV). 2D Sb-SPCE was characterized by microscopic and analytical techniques, and compared not only to bare SPCE but also to layered antimony chalcogenides based-sensors. Both Sb2S3 and Sb2Se3 have an isomorphous tubular one-dimensional (1D) crystal structure, whereas Sb2Te3 and monoelement β-Sb have a 2D layered structure. Under optimized conditions, 2D Sb-SPCE displays an excellent analytical performance with detection limits of 0.3 and 2.7 μg L−1 for Pb(II) and Cd(II), respectively, and a linear response from 1.1 to 128.3 µg L−1 for Pb(II) and from 9.1 to 132.7 µg L−1 for Cd(II). Moreover, 2D Sb-SPCE was successfully applied for the DPASV determination of Pb(II) and Cd(II) in tap water, achieving statistically comparable results to those provided by ICP-MS measurements. |
Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.electacta.2022.140690 |
It is part of: | Electrochimica Acta, 2022, vol. 425, num. 140690 |
URI: | http://hdl.handle.net/2445/189556 |
Related resource: | https://doi.org/10.1016/j.electacta.2022.140690 |
ISSN: | 0013-4686 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) Articles publicats en revistes (Institut de Recerca de l'Aigua (IdRA)) |
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