Electrochemical detection of lead (II) at bismuth/Poly(1,8-diaminonaphthalene) modified carbon paste electrode

Salih, Fatima Ezzahra; Ouarzane, Aicha; Rhazi, Mama El

doi:10.1016/j.arabjc.2015.08.021

Cited by 74 publications

(34 citation statements)

References 54 publications

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“…Carbon paste electrode was prepared by mixing the graphite powder (1 g) and the paraffin oil (300 µL) in a mortar until a homogeneous paste was obtained [38]. A portion of resulting paste was carefully packed into electrode cavity (Teflon tube, 3 mm in diameter), and then polished on a clean paper until a smooth surface was obtained.…”

Section: Preparation Of Modified Electrodesmentioning

confidence: 99%

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Oularbi

Turmine

Rhazi³

2017

J Solid State Electrochem

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In this paper, a new nanocomposite of polypyrrole (PPy) and carbon nanofibers (CNFs) modified carbon paste electrode (CPE) has been reported for the determination of traces lead ions (Pb 2+ ). The obtained nanocomposite was fabricated by combining the unique advantages of PPy and CNFs using a very simple approach, which consists on modifying the CPE by the functionalized CNFs and then by the PPy film using galvanostatic mode. Several techniques were used to investigate the functionalized CNFs and the PPy/CNFs nanocomposite including Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) for surface layers of CNFs, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for the electrical proprieties of the PPy/CNFs nanocomposite. The surface morphologies were examined by field emission gun scanning electron microscopy (FEG-SEM). The square wave anodic striping voltammetry (SWASV) was used to investigate the analytical performances of the designed electrode PPy/CNFs/CPE. Different parameters that affect the stripping analysis of Pb 2+ including supporting electrolyte, deposition potential, and deposition time were investigated. Under the optimum experimental conditions, a good linearity between the stripping peak currents and the concentration of Pb 2+ was obtained in the range of concentration from 0.2 to 130 µg L -1 Pb 2+ . The detection limit was estimated to be 0.05 µg L -1 Pb 2+ . Finally, the proposed method has been successfully applied for the determination of Pb 2+ in real samples of tap water with satisfactory results.

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Section: Preparation Of Modified Electrodesmentioning

confidence: 99%

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Oularbi

Turmine

Rhazi³

2017

J Solid State Electrochem

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“…Paste electrodes have been used to test analytes of concern combining the advantages of high stability of GCE and high performance of electrochemical performance of composite material. Bismuth/poly(1,8‐diaminonaphthalene) modified carbon paste electrode has shown superior performance in Pb 2+ detection due to the strong interactions between the metallic ions and amino groups of the polymer matrices . A novel graphite–epoxy composite paste electrode with bismuth precursor showed well‐defined and sensitive stripping signals for the detection of heavy metals .…”

Section: Design Of Electrode Integrationmentioning

confidence: 99%

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

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The increase in release of toxic heavy metals into natural water attracts much attention due to its devastating effect on ecology and human health. The design and implementation of green electrode materials is pivotal for improving the electrochemical performance of in situ heavy metal monitoring. This work reviews various novel electrode materials and hybrid materials that improve electrochemical detection. Modified green and novel electrode materials offer better performance due to their improved deposition with wide linear and enhanced response under optimized sensing parameters. In particular, recent works related to gold, carbon materials, bismuth, and metal oxide‐based electrodes are reviewed. The environmentally friendly (“green”) characteristics, as well as their versatility and flexibility, are especially emphasized. In addition, synthesis methods and novel designs of electrode integration are highlighted. Most of the substantial achievements as well as breakthroughs in recent years are surveyed, and the challenges and prospective in this field are also identified.

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“…Thus, bismuth-modified electrochemical based electrodes were proposed for lead ion detection in different test media [6,[13][14][15][16][17][18]. One advantage of using bismuth film for the detection of lead ions was that the dissolved oxygen in the test medium did not interfere with the measurement of lead ion [19][20][21].…”

Section: Under-potential Deposition Of Bismuth On the Thin Gold Film mentioning

confidence: 99%

A Simple, Cost-Effective Sensor for Detecting Lead Ions in Water Using Under-Potential Deposited Bismuth Sub-Layer with Differential Pulse Voltammetry (DPV)

Dai

Liu

2017

Preprint

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Abstract:The accumulation of high levels of lead or lead ions in a human body is harmful, particularly to children. Its neurotoxic effect is profound, damaging the central and peripheral nervous systems, resulting in stunted growth, behavioral problems and learning disabilities. The major source of lead or lead ions comes from the drinking water and tap water. The assessment of the water quality, including lead or lead ion content, is usually completed by a regional water department professional. This assessment is time-consuming and requires expensive instruments and skilled operators.Therefore, there is a need to produce a simple-use and relatively inexpensive method to detect lead or lead ions in water samples. This research has developed a simple-use, cost effective sensor system for the detection of lead ions in tap water. An underpotential deposited bismuth sub-layer on a thin gold film based electrochemical sensor was designed, manufactured and evaluated.Differential pulse voltammetry (DPV) measurement technique was employed in this detection. Tap water from the Cleveland, Ohio, USA regional water district was the test medium. Concentrations of lead ion in the range of 8 X 10 -8 M to 8 x 10 -4 M were evaluated.This DPV detection system required 3 -6 minutes to complete the detection measurement. A longer measurement time of 6 minutes was used for the lower lead ion concentration. The selectivity of this lead ion sensor was very good, and Fe III, Cu II, Ni II and Mg II at a concentration level of 5×10 -4 M did not interfere with the lead ion measurement.

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Electrochemical detection of lead (II) at bismuth/Poly(1,8-diaminonaphthalene) modified carbon paste electrode

Cited by 74 publications

References 54 publications

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

A Simple, Cost-Effective Sensor for Detecting Lead Ions in Water Using Under-Potential Deposited Bismuth Sub-Layer with Differential Pulse Voltammetry (DPV)

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