A novel copper(<scp>ıı</scp>) phthalocyanine-modified multiwalled carbon nanotube-based electrode for sensitive electrochemical detection of bisphenol A

Koyun, Ozge; Gördük, Semih; Gençten, Metin; Şahin, Yücel

doi:10.1039/c8nj03721c

Cited by 80 publications

(31 citation statements)

References 57 publications

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“…Electroanalytical methods are highly preferred analytical techniques thanks to their many advantages like low detection limits, low cost, high accuracy, no time-consuming pre-treatment processes, and short analysis time [7,8,9]. The electrochemical determination of Py has been carried out on chemically modified electrodes with nano-materials [10,11].…”

Section: Introductionmentioning

confidence: 99%

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

2021

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In this study; a sensitive, selective, and simple electrochemical sensor was developed to determine low concentration pyridoxine (Py) using a phosphorus‐doped pencil graphite electrode (P‐doped/PGE). Electrode modification was implemented using the chronoamperometry method at +2.0 V constant potential and 100 seconds in 0.1 mol L−1 H3PO4 supporting electrolyte solution. The characterization processes of the P‐doped/PGE were carried out using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), X‐ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), energy‐dispersive X‐ray spectroscopy (EDX), and atomic force microscope (AFM) methods. In the concentration study, using the differential pulse voltammetry (DPV) method, a linear calibration plot was acquired in the concentration range of 0.5 to 300 μmol L−1 Py. The limit of quantification (LOQ) and limit of detection (LOD) of the developed method were calculated as 0.219 μmol L−1 and 0.0656 μmol L−1, respectively. Detection of Py has been successfully performed on the P‐doped/PGE in the beverage samples. As a result, the method developed has been shown to have fast, low cost, and simple for the sensitive and selective detection of Py as an effective electrode.

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Section: Introductionmentioning

confidence: 99%

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

2021

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“…Various compounds and ions like methanol, phenol, SO4 2− , Na + , Cl − , Cu 2+ , Fe 3+ , Pb 2+ , K + and Cd 2+ may be utilized in the synthesis and structure determination of packing materials (10). For identifying the influences of these materials on the electrochemical determination of BPA, we investigated the variation in current by introducing these materials to the BPA solutions in the DPV analyses.…”

Section: Interference Studiesmentioning

confidence: 99%

“…When the literature is examined, it is seen that there are many analytical methods used for BPA determination. These methods include highperformance liquid chromatography (9), electrochemical methods (1,10), gas chromatography (11), enzyme-linked immunosorbent (12), molecular suppression (13) and fluorimetry (14). Among these methods, electrochemical methods have several benefits such as speed, minimal cost, simple usage, good sensitivity, and satisfactory selectivity.…”

Section: Introductionmentioning

confidence: 99%

Poly(glutamic acid) Modified Pencil Graphite Electrode for Voltammetric Determination of Bisphenol A

Gördük

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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Bisphenol A (BPA), which is an endocrine-disrupting substance, is often utilized as beverage and food packing material, and it may accumulate in nutrition and water sources, which is why it is important to monitor. In this study, for the determination of bisphenol A, electro-polymerization of glutamic acid (GA) was performed on a pencil graphite electrode (PGE). The performance of the sensor (PGA/PGE) for determining bisphenol A was examined utilizing the cyclic voltammetric (CV) and differential pulse voltammetric (DPV) methods. Electrochemical characterization process of the PGA/PGE was carried out by the electrochemical impedance spectroscopy (EIS) and CV methods. The morphological property of the PGA/PGE was investigated by scanning electron microscopy (SEM). The presence of functional groups in the PGA/PGE composition was characterized by Fourier transform infrared spectroscopy (FTIR). The electrochemical behavior of BPA was observed with the bare PGE and the PGA/PGE. Based on the findings, the response of BPA was considerably raised with PGA/PGE. With the optimized parameters and based on the findings from DPV, the BPA oxidation current was linear in a concentration interval of 1.0 to 100 μM (R=0.9992), and the detection limit was found to be 0.37 μM. Detection of BPA in the plastic bottled drinking water sample using PGA/PGE was performed successfully, and the recoveries were in the range of 89.3 to 104.7%. This strategy can provide several prospects in electrochemically determining BPA in practical applications.

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“…Bisphenol-A (BPA) is the key material for manufacturing epoxy resins, polycarbonate plastic, resins, and coatings on food material pockets [43,44]. Besides, BPA is one of the endocrine damaging compounds that are polluted by the milk bottles, landfill leachates, paper, packaging, and plastics industries in the environment [45].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of N-rGO-MWCNT/CuCrO2 Catalyst for the Bifunctional Application of Hydrogen Evolution Reaction and Electrochemical Detection of Bisphenol-A

et al. 2021

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A glassy carbon electrode (GCE) coated with delafossite CuCrO2 loading on the nitrogen-doped reduced graphene oxide (N-rGO) and multiwalled carbon nanotubes (MWCNT) composite (N-rGO-MWCNT/CuCrO2) was applied to the hydrogen evolution reaction and Bisphenol-A (BPA) detection. First, the N-rGO-MWCNT composite was prepared by in situ chemical reduction with caffeic acid as a reducing agent. Then, CuCrO2 was accumulated on the N-rGO-MWCNT surface to form N-rGO-MWCNT/CuCrO2 composite. The morphology structure of the N-rGO-MWCNT/ CuCrO2 composite was analyzed by different characterization techniques. Besides, the GCE/N-rGO-MWCNT/CuCrO2 composite electrode was investigated for hydrogen evolution reaction (HER), which shows an excellent electrocatalytic activity with a low over-potential, increasing reduction current, and a small Tafel slope of 62 mV·dec−1 at 10 mA·cm−2 with long-term stability. Moreover, the electrochemical determination of BPA was in the range of 0.1-110 µM, and low detection limit of 0.033 µM (S/N = 3) with a higher sensitivity of 1.3726 µA µM−1 cm−2. Furthermore, the prepared GCE/N-rGO-MWCNT/CuCrO2 electrode shows effective detection of BPA in food samples with acceptable recoveries. Hence, the finding of GCE/N-rGO-MWCNT/CuCrO2 can be observed as an impressive catalyst to the electrocatalytic activity of HER and BPA oxidation.

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A novel copper(ıı) phthalocyanine-modified multiwalled carbon nanotube-based electrode for sensitive electrochemical detection of bisphenol A

Abstract: A novel copper(ii) phthalocyanine (CuPc)-modified multiwalled carbon nanotube-based electrode was prepared for the sensitive electrochemical detection of bisphenol A, by the modification of a pencil graphite electrode via the adsorption method.

Cited by 80 publications

References 57 publications

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

Poly(glutamic acid) Modified Pencil Graphite Electrode for Voltammetric Determination of Bisphenol A

Synthesis of N-rGO-MWCNT/CuCrO2 Catalyst for the Bifunctional Application of Hydrogen Evolution Reaction and Electrochemical Detection of Bisphenol-A

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