Synthesis of a novel electrode material containing phytic acid-polyaniline nanofibers for simultaneous determination of cadmium and lead ions

Huang, Hui; Zhu, Wencai; Gao, Xiaochun; Liu, Xiuyu; Ma, Houyi

doi:10.1016/j.aca.2016.10.012

Cited by 48 publications

(20 citation statements)

References 52 publications

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“…Preparation of (2,3-dihydrothieno [3,4-b] [1,4]dioxin-2-yl)methanamine PEDOT/NH 2 [29] The original monomer of EDOT-NH 2 was synthesised as illustrated in Scheme 1. The substitution of the chloride group by an amine group was achieved via a Gabriel reaction in the presence of potassium phthalimide and hydrazine.…”

Section: Preparation Of Stock Solutionsmentioning

confidence: 99%

“…The substitution of the chloride group by an amine group was achieved via a Gabriel reaction in the presence of potassium phthalimide and hydrazine. A mixture of 2-(chloromethyl)-2,3-dihydrothieno [3,4-b] [1,4]dioxine (0.3 g, 1.6 mmol) and potassium phthalimide (0.4 g, 2.2 mmol) were dissolved in 10 ml of dimethylformamide and heated at 100 ºC for 24 h. Next, the product was decanted into 100 ml of water and extracted with chloroform. 0.1 M sodium hydroxide and water were used to wash the organic layer and then dried with MgSO 4 .…”

Section: Preparation Of Stock Solutionsmentioning

confidence: 99%

“…Globally, pollution of the planet is one of most vital problems because of the widespread and critical damage such pollution can cause [1][2][3]. Heavy metal ions like Cu, Hg, Zn, Pb, Ni, and Cd are considered toxic even in extremely low concentrations [3].…”

Section: Introductionmentioning

confidence: 99%

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An electrochemical detection of cadmium (II) and lead (II) ions using a polymer-modified electrode with a Schiff base by square wave voltammetry

Mohammed

Ismail²,

Alesary³

et al. 2021

Preprint

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The work herein concentrates on the electrochemical detection of heavy metal ions, specifically cadmium and lead ions. The introduction and modification of functional groups such as Schiff bases had led to an enhanced sensitivity of the electrode to analytes. In this study, a platinum electrode has for the first time been modified with poly(3,4- ethylenedioxythiophene) (PEDOT/Schiff base) in CH2Cl2 containing Bu4NPF6 for use to detection cadmium (II) and lead (II) ions. The structure and morphology of the polymer coatings were characterised by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), respectively. The electrochemical synthesis and redox state response in monomer-free synthesised films have been studied by cyclic voltammetry. Moreover, the effect of scan rate on the electrochemical behaviour of the modified electrodes was also studied. The voltammetric findings have been used to calculate the surface coverage required for the polymer films and the stability of polymer electrodes in the monomer-free solutions. Square wave voltammetry (SWV) was applied for the determination of cadmium (II) and lead (II) ion concentrations and to assess the effects of pH on aqueous samples. The limits of detection for the modified electrode for cadmium (II) and lead (II) were found to be 0.95 μg L-1 and 1.84 μg L-1, respectively. These findings revealed that modified films can be considered good candidates for application in electrochemical detection devices

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Section: Preparation Of Stock Solutionsmentioning

confidence: 99%

Section: Preparation Of Stock Solutionsmentioning

confidence: 99%

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An electrochemical detection of cadmium (II) and lead (II) ions using a polymer-modified electrode with a Schiff base by square wave voltammetry

Mohammed

Ismail²,

Alesary³

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…Organic ligands with electron rich atoms including phytic acid oxygen [22,23], phenolic oxygen and nitrogen [24], cysteine sulfur [25,26] and lysine nitrogen [27] were found to implement better analytical performances for simultaneous determination of Cd(II) and Pb(II). MBT is an alternative ligand containing nitrogen and sulfur [28] which was used in the extraction of both metals before analysis by flame atomic absorption spectroscopy (FAAS) [29], as a biosensor for pesticides [30] and in forming polymeric structure to accommodate more complexing sites [31].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of trace levels of Cd(II) and Pb(II) in tap water samples by anodic stripping voltammetry with 2-mercaptobenzothiazole modified electrode

Phlay¹,

Tapachai²,

Daungthong³

et al. 2019

J. Electrochem. Sci. Eng.

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<span lang="EN-US">Glassy carbon electrode (GCE) modified by 2-mercaptobenzothiazole (MBT), mesoporous silica (Meso) and bismuth was developed to determine Cd(II) and Pb(II) simultaneously by square wave anodic stripping voltammetry (SWASV). In-situ preparation was found to work best in optimum conditions of acetate buffer pH 6, accumulation potential of <br /> -1.1 V, deposition time of 300 s and scan rate of 200 mV/s. SW peaks revealed the linear range of 5-50 µg/L Cd(II) and 5-50 µg/L Pb(II). LOD and LOQ for Cd(II) and Pb(II) were determined as 0.56, 0.80, 1.87 and 2.66 µg/L, respectively. The interaction of metals with bismuth and MBT, as well as higher surface area due to mesoporous silica, support beneficial performance of the modified electrode. Insignificant interferences from other regularly present metal ions were found. With SRM1640 standard, the SWASV results are found comparable to those obtained by inductive coupled plasma optical emission spectrometry (ICP-OES). The method was used to analyze the metals in tap water by standard addition method with the satisfactory recovery of 100.7 % for Cd(II) and 100.8 % for Pb(II).</span>

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“…These heavy metal ions, such as Cd 2+ and Pb 2+ , possess the slow process characteristic of toxicity fading and are difficult to degrade by microorganisms; they are typically considered to be highly toxic and hazardous to human health and the natural environment even at trace levels [ 8 , 9 ]. It is therefore necessary to develop fast, economic, and timely methods for monitoring Cd 2+ and Pb 2+ concentrations at trace levels [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

A Facile Electrochemical Sensor Based on PyTS–CNTs for Simultaneous Determination of Cadmium and Lead Ions

Jiang

Liu

Gao

et al. 2018

Sensors

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A simple and easy method was implemented for the contemporary detection of cadmium (Cd2+) and lead (Pb2+) ions using 1,3,6,8-pyrenetetrasulfonic acid sodium salt-functionalized carbon nanotubes nanocomposites (PyTS–CNTs). The morphology and composition of the obtained PyTS–CNTs were characterized using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and X-ray photoelectron spectroscopy (XPS). The experimental results confirmed that the fabricated PyTS–CNTs exhibited good selectivity and sensitivity for metal ion-sensing owing to the insertion of sulfonic acid groups. For Cd2+ and Pb2+, some of the electrochemical sensing parameters were evaluated by varying data such as the PyTS–CNT quantity loaded on the pyrolytic graphite electrode (PGE), pH of the acetate buffer, deposition time, and deposition potential. These parameters were optimized with differential pulse anodic sweeping voltammetry (DPASV). Under the optimal condition, the stripping peak current of the PyTS–CNTs/Nafion/PGE varies linearly with the heavy metal ion concentration, ranging from 1.0 μg L−1 to 90 μg L−1 for Cd2+ and from 1.0 μg L−1 to 110 μg L−1 for Pb2+. The limits of detection were estimated to be approximately 0.8 μg L−1 for Cd2+ and 0.02 μg L−1 for Pb2+. The proposed PyTS–CNTs/Nafion/PGE can be used as a rapid, simple, and controllable electrochemical sensor for the determination of toxic Cd2+ and Pb2+.

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Synthesis of a novel electrode material containing phytic acid-polyaniline nanofibers for simultaneous determination of cadmium and lead ions

Cited by 48 publications

References 52 publications

An electrochemical detection of cadmium (II) and lead (II) ions using a polymer-modified electrode with a Schiff base by square wave voltammetry

An electrochemical detection of cadmium (II) and lead (II) ions using a polymer-modified electrode with a Schiff base by square wave voltammetry

Simultaneous determination of trace levels of Cd(II) and Pb(II) in tap water samples by anodic stripping voltammetry with 2-mercaptobenzothiazole modified electrode

A Facile Electrochemical Sensor Based on PyTS–CNTs for Simultaneous Determination of Cadmium and Lead Ions

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