Simple and highly sensitive 2-hydroxy-1,4-naphthoquinone/glassy carbon sensor for the electrochemical detection of [Ni(CN)4]2− in metallurgical industry wastewater

Cardenas‐Riojas, Andy A.; Muedas-Taipe, Golfer; Rosa-Toro, Adolfo La; Sotomayor, Maria Del Pilar Taboada; Ponce-Vargas, Miguel; Baena-Moncada, Angélica M.

doi:10.1007/s10800-022-01691-0

Cited by 3 publications

(21 citation statements)

References 59 publications

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“…Remarkably, GC, presents a higher Rct than GC/FNQ, given that the electron transfer is slow on its surface. For this reason, when GC surface is modified with FNQ (GC/FNQ), the Rct decreases and the charge transfer is faster, in line with lower resistance [15]. Since the charge transfer in the GC/FNQ electrode is faster than in the G electrode, this allowed us to detect the WAD cyanide complexes at micromolar concentrations (as shown in section 3.2).…”

Section: Resultsmentioning

confidence: 95%

“…Figure 3B displays [Ni(CN) 4 ] 2− electrochemical detection by DPV technique using the proposed sensor, where the decrease of the FNQ reduction peak at ‐0.15 V can be related to FNQ−Ni(0) interactions, while at 0.97 V the signal corresponds to Ni(II)→Ni(0) reduction, Reaction (2) [15, 54]. The DPV analysis of the cyanide nickel complex (Figure 3C) reveals an increase in the maximum cathodic current (ipc) at 1.0 V with the addition of [Ni(CN) 4 ] 2− .…”

Section: Resultsmentioning

confidence: 99%

“…The DPV analysis of the cyanide nickel complex (Figure 3C) reveals an increase in the maximum cathodic current (ipc) at 1.0 V with the addition of [Ni(CN) 4 ] 2− . This analysis was performed in triplicate [15].

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\left[{\rm N}{\rm i}{\left({\rm C}{\rm N}\right)}_{4}\right]}_{\left({\rm a}{\rm c}\right)}^{2-}+{4{\rm H}}_{2}{{\rm O}}_{\left({\rm l}\right)}\to {{\rm N}{\rm i}}_{\left({\rm S}\right)}+4{\rm O}{\rm C}{{\rm N}}^{-}+8{{\rm H}}^{+}+6{{\rm e}}^{-}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

“…The red color solution was heated until small crystals appeared. These crystals were subjected to recrystallization until orange crystals were formed, which is characteristic of Na 2 [Ni(CN) 4 ] [15, 29]. For the synthesis of the sodium tricyanocuprate complex, Na 2 [Cu(CN) 3 ], 2.25 g of the copper cyanide salt (CuCN) was dissolved in 50 mL of NaCN 50 mmol L −1 .…”

Section: Methodsmentioning

confidence: 99%

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Monitoring WAD cyanide concentration in river waters with a glassy carbon electrode modified with 9,10‐Phenanthroquinone

Cardenas‐Riojas,

Calderon‐Zavaleta,

Quiroz‐Aguinaga

et al. 2023

Electroanalysis

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Heavy metal‐containing industrial effluent streams from electroplating and metalworking industries represent a major environmental issue. They contain metal cyanide complexes ([Ni(CN)4]2− and [Cu(CN)3]2−) referred to as weak acid dissociable cyanide (CN‐WAD), which require continuous in situ monitoring. In this scenario, a glassy carbon (GC) electrode superficially decorated with 9,10‐phenanthroquinone (FNQ) is manufactured and employed for the simultaneous electrochemical monitoring of cyanide WAD complexes. The interaction between GC and FNQ was characterized by Raman and electrochemical impedance spectroscopies, cyclic voltammetry, and chronocoulometry. The electrochemical evaluation was conducted by differential pulse voltammetry (DPV) and CV. The GC/FNQ electrochemical sensor simultaneously detected cyanide complexes with an average linear range of 9–93 μmol L−1, and a detection limit of 0.15±0.04 μmol L−1 and 1.2±0.6 μmol L−1 for [Ni(CN)4]2− and [Cu(CN)3]2−, respectively. The sensor demonstrated remarkable selectivity in the presence of multiple interfering species with a percentage variation range of 89.2–109.4 %. Moreover, a computational DFT study provided valuable insights into the electrode/electrolyte interface. Finally, the developed sensor was applied for the electrochemical detection of WAD cyanide in river water samples.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\left[{\rm N}{\rm i}{\left({\rm C}{\rm N}\right)}_{4}\right]}_{\left({\rm a}{\rm c}\right)}^{2-}+{4{\rm H}}_{2}{{\rm O}}_{\left({\rm l}\right)}\to {{\rm N}{\rm i}}_{\left({\rm S}\right)}+4{\rm O}{\rm C}{{\rm N}}^{-}+8{{\rm H}}^{+}+6{{\rm e}}^{-}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Monitoring WAD cyanide concentration in river waters with a glassy carbon electrode modified with 9,10‐Phenanthroquinone

Cardenas‐Riojas,

Calderon‐Zavaleta,

Quiroz‐Aguinaga

et al. 2023

Electroanalysis

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“…Quinone molecules (Q) have demonstrated their adsorption capacity on glassy carbon electrode surfaces (GCE), as well as an electron acceptor behavior in several reactions. − GCE electrodes modified with naphthoquinone (anthraquinone) for the detection of [Ni(CN) 4 ] 2– and [Cu(CN) 3 ] 2– , has been recently reported by our group , Among other supports based on carbons materials modified with Q molecules, we can mention the exfoliated graphite functionalized with redox-active Q, which enables the electrocatalysis of ascorbic acid oxidation, and the multiwalled carbon nanotubes (MWCNTs) anchored to a glassy carbon electrode, which are able to oxidize carbazole to carbazole-mono-1,4-quinone . For the latter material, it has been proposed that a strong π–π interaction occurs, given the structural compatibility of benzene rings between MWCNTs and Q molecules.…”

Section: Introductionmentioning

confidence: 99%

Square-Wave Voltammetric Detection of Zn(II) and Cd(II) with a Graphite/Carbon Paste Electrode Decorated with 2-Hydroxy-1,4-naphthoquinone

Carhuayal-Alvarez,

Ascencio-Flores,

Quiroz-Aguinaga

et al. 2023

ACS EST Water

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The concentration of heavy metals (HMs) in rivers continues to increase beyond regional background values, thereby impacting human health and disrupting ecological balance. In this context, an electrochemical sensing device to detect HM ions Zn(II) and Cd(II) in river waters is herein reported. It consists of graphite (G) decorated with 2-hydroxy-1,4-naphthoquinone (HNFQ) incorporated in a carbon paste electrode (CPE), and the G surface modification with HNFQ was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronocoulometry (CC). The electroanalytical behavior and detection of Zn(II) and Cd(II) were evaluated by square-wave voltammetry (SWV) and CV. The developed sensor exhibits excellent stability, reproducibility, repeatability, and selectivity in the presence of interferents. The optimal G/HNFQ-CPE sensitivity is reflected by the limits of detection (LOD, 0.28 ± 0.02 μmol L −1 for Zn and 0.21 ± 0.03 μmol L −1 for Cd), limits of quantification (LOQ, 0.95 ± 0.09 μmol L −1 for Zn and 0.70 ± 0.11 μmol L −1 for Cd), and linear working range (0.47−93.8 μmol L −1 ). DFT calculations were performed to obtain molecular insights into the electrode/ electrolyte solution interface. Finally, the sensor was validated using the atomic absorption technique, which places G/HNFQ-CPE as a promising electrode for Zn(II) and Cd(II) SWV detection.

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Monitoring WAD Cyanide Concentration in River Waters with a Glassy Carbon Electrode Modified with 9,10-Phenanthroquinone

Cardenas-Riojas,

Calderon-Zavaleta,

Quiroz-Aguinaga

et al. 2023

Preprint

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Heavy metal-containing industrial effluent streams from electroplating and metalworking industries represent a major environmental issue. They contain metal cyanide complexes ([Ni(CN)4]2- and [Cu(CN)3]2-) referred to as weak acid dissociable cyanide (CN-WAD), which require continuous in situ monitoring. In this scenario, a glassy carbon (GC) electrode superficially decorated with 9,10-phenanthroquinone (FNQ) is manufactured and employed for the simultaneous electrochemical monitoring of cyanide WAD complexes. The interaction between GC and FNQ was characterized by Raman and electrochemical impedance spectroscopies, cyclic voltammetry, and chronocoulometry. The electrochemical evaluation was conducted by differential pulse voltammetry (DPV) and CV. The GC/FNQ electrochemical sensor simultaneously detected cyanide complexes with an average linear range of 9.09 - 92.8 μmol L-1, and a detection limit of 1.47 ± 0.11 μmol L-1 and 1.2 ± 0.6 μmol L-1 for [Ni(CN)4]2- and [Cu(CN)3]2-, respectively. The sensor demonstrated remarkable selectivity in the presence of multiple interfering species with a percentage variation range of 89.2-109.4%. Moreover, a computational DFT study provided valuable insights into the electrode/electrolyte interface. Finally, the developed sensor was applied for the electrochemical detection of WAD cyanide in river water samples.

show abstract

Simple and highly sensitive 2-hydroxy-1,4-naphthoquinone/glassy carbon sensor for the electrochemical detection of [Ni(CN)4]2− in metallurgical industry wastewater

Cited by 3 publications

References 59 publications

Monitoring WAD cyanide concentration in river waters with a glassy carbon electrode modified with 9,10‐Phenanthroquinone

Monitoring WAD cyanide concentration in river waters with a glassy carbon electrode modified with 9,10‐Phenanthroquinone

Square-Wave Voltammetric Detection of Zn(II) and Cd(II) with a Graphite/Carbon Paste Electrode Decorated with 2-Hydroxy-1,4-naphthoquinone

Monitoring WAD Cyanide Concentration in River Waters with a Glassy Carbon Electrode Modified with 9,10-Phenanthroquinone

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