Size-tunable polyaniline nanotube-modified electrode for simultaneous determination of Pb(II) and Cd(II)

Zhu, Guodong; Ge, Yao; Dai, Yujia; Shang, Xiaohong; Yang, Jianmao; Liu, Jianyun

doi:10.1016/j.electacta.2018.02.101

Cited by 34 publications

(3 citation statements)

References 51 publications

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“…Hence, preparation of electrode materials with high sensitivity, high selectivity, and weak mutual interference is highly desirable. Generally, these types of electrode materials are synthesized using metallic nanomaterials [5], metal oxides-based nanomaterials [6,7], graphene-based nanocomposites [8,9], polymers [10], and polymers-based nanocomposities [11,12]. Among them, conducting polymers-based nanomaterials are the kind of novel materials, in which, polymers can be blended with an inorganic substrate to form composite materials, and their mechanical, electrical, and other properties can be greatly improved.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor of Double-Thiol Linked PProDOT@Si Composite for Simultaneous Detection of Cd(II), Pb(II), and Hg(II)

et al. 2019

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Heavy metal ions in water, cosmetics, and arable land have become a world-wide issue as they cause a variety of diseases and even death to humans and animals when a certain level is exceeded. Therefore, it is necessary to development a new kind of sensor material for the determination of heavy metal ions. In this paper, we present an electrochemical sensor based on composite material (thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2)/ porous silicon spheres (Si) composite, denoted as PProDOT(MeSH)2@Si) from the incorporation of thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2) with porous silicon spheres (Si) for the electrochemical detection of heavy metal ions (Cd(II), Pb(II), and Hg(II)). The PProDOT(MeSH)2@Si composite was synthesized via a chemical oxidative polymerization method. The structure and morphology of PProDOT(MeSH)2@Si composite were characterized by Fourier transform infrared (FT-IR), Ultraviolet–visible spectroscopy (UV–Vis), X-ray diffraction (XRD), scanning electron microscope (SEM), Transmission electron microscope (TEM), and Brunauer−Emmett−Teller (BET). Furthermore, the electrochemical performance of PProDOT(MeSH)2@Si was evaluated by detecting of Cd(II), Pb(II), and Hg(II) ions using the differential pulse voltammetry (DPV) method. The relationship between structural properties and the electrochemical performance was systematically studied. The results showed that the entry of two thiol-based chains to the monomer unit resulted in an increase in electrochemical sensitivity in PProDOT(MeSH)2, which was related to the interaction between thiol group(-SH) and heavy metal ions. And, the combination of PProDOT(MeSH)2 with Si could improve the electrocatalytic efficiency of the electrode material. The PProDOT(MeSH)2@Si/GCE exhibited high selectivity and sensitivity in the rage of 0.04 to 2.8, 0.024 to 2.8, and 0.16 to 3.2 μM with the detection limit of 0.00575, 0.0027, and 0.0017 µM toward Cd(II), Pb(II), and Hg(II), respectively. The interference studies demonstrated that the PProDOT(MeSH)2@Si/GCE possessed a low mutual interference and high selectivity for simultaneous detection of Cd(II), Pb(II), and Hg(II) ions.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor of Double-Thiol Linked PProDOT@Si Composite for Simultaneous Detection of Cd(II), Pb(II), and Hg(II)

et al. 2019

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“…Preparation of PANI nanotubes and GO.-PANI nanotubes were produced by in-situ polymerization on electrospun PS fibers as reported previously. 40 GO was synthesized by a modified Hummers method. 41 Briefly, 1.0 g of flake graphite was added into 100 mL concentrated sulfuric acid (H 2 SO 4 , 98%) and stirred for 15 min under an ice bath.…”

Section: Methodsmentioning

confidence: 99%

Partially Reduced Graphene Oxide Sheet-Covered Polyaniline Nanotubes for the Simultaneous Determination of Bisphenol A and Phenol

Zhu

Tang

Dou

et al. 2019

J. Electrochem. Soc.

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The health hazards caused by phenolic pollution are very serious and it's urgent to explore sensitive detection methods of phenols. Here, the partially-reduced-GO-sheet-covered polyaniline nanotubes (PANI-GO) was prepared by in-situ redox interaction between GO and PANI. The redox process was confirmed by Fourier transform infrared spectrometer and X-ray photoelectron spectroscopy. This nanocomposite sheet was evenly distributed on a glassy carbon electrode (PANI-GO/GCE). Cyclic voltammetry and electrochemical impedance spectroscopy characterization indicated that this PANI-GO facilitated the charge transfer with enhanced current response by using Fe(CN) 63−/4− as a probe. The PANI-GO/GCE was applied successfully for the simultaneous determination of bisphenol A (BPA) and phenol with a wider peak-to-peak separation (140 mV) than that (97 mV) on bare GCE. Under optimal conditions, the PANI-GO/GCE exhibited a highly sensitive response to BPA and phenol oxidation in wide linear ranges of 2.0 × 10 −9 ∼ 3.0 × 10 −6 mol L −1 and 1.0 × 10 −8 ∼ 1.0 × 10 −5 mol L −1 , respectively. The limits of detection of BPA and phenol were 5.0 × 10 −10 mol L −1 and 4.5 × 10 −9 mol L −1 (S/N>3), respectively. The determination results of trace amount of BPA in the water sample from plastic products by the PANI-GO/GCE are in good agreement with the ones from Ultra Performance Liquid Chromatograph-Mass Spectroscopy.

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“…Both individual and simultaneous detection of Pb 2+ and Cd 2+ were afterward investigated on polyaniline nanotubes/electrospun polystyrene surface [ 68 ]. Morphological and electrochemical properties of the PANI nanotubes were demonstrated to depend on the size of the polystyrene fibers.…”

Section: Recent Nanofibers For Hmis Sensorsmentioning

confidence: 99%

Electrospun Nanofibers and Electrochemical Techniques for the Detection of Heavy Metal Ions

et al. 2021

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Contamination by heavy metals is currently one of the most environmental concerns especially due to the toxicity, pervasiveness, and persistence of these substances. As they are not biodegradable, heavy metals are harmful not only for water, air, and soil but also for human health, even in very low traces. There is therefore a pressing need to develop an efficient, economic, and rapid analysis method to be applied in a wide range of conditions and able to detect very low contaminants concentrations. Currently, the most novel solution in this field is represented by the combination of electrospun nanofibers and highly sensitive electrochemical techniques. It has been proved that nanofibers, due to their outstanding properties, perfectly fit as sensing material when trace concentrations of heavy metals were investigated by anodic stripping voltammetry, envisaged as the most sensitive electrochemical technique for this kind of measurements. This work aims to provide an overview of the latest trends in the detection of contaminants by the simultaneous use of electrospun fibers and anodic stripping voltammetry. Indeed, a clear and comprehensive vision of the current status of this research may drive future improvements and new challenges.

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Size-tunable polyaniline nanotube-modified electrode for simultaneous determination of Pb(II) and Cd(II)

Cited by 34 publications

References 51 publications

Electrochemical Sensor of Double-Thiol Linked PProDOT@Si Composite for Simultaneous Detection of Cd(II), Pb(II), and Hg(II)

Electrochemical Sensor of Double-Thiol Linked PProDOT@Si Composite for Simultaneous Detection of Cd(II), Pb(II), and Hg(II)

Partially Reduced Graphene Oxide Sheet-Covered Polyaniline Nanotubes for the Simultaneous Determination of Bisphenol A and Phenol

Electrospun Nanofibers and Electrochemical Techniques for the Detection of Heavy Metal Ions

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