Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Nayem, S. M. Abu; Sultana, Nasrin; Islam, Tamanna; Hasan, Md. Mahedi; Awal, Abdul; Roy, Subrata Chandra; Aziz, Md. Abdul; Ahammad, A. J. Saleh

doi:10.1002/elsa.202100046

Cited by 8 publications

(7 citation statements)

References 67 publications

(87 reference statements)

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“…Because tap water contains anionic species, such as SO 4 − , HCO 3 − , NO 3 − , and cations, such as Ca 2+ and Mg 2+ nitrite detection may be affected. [55][56][57] The CV technique was used to detect nitrites in tap water. Nitrite solutions of 300, 400 and 500 μM were used.…”

Section: Resultsmentioning

confidence: 99%

Fe(II)-Based Metallo-Supramolecular Polymer Film for Electrochemical Detection of Nitrite: Studies of Kinetics and Reaction Mechanisms

Awal

Mia

Sarkar

et al. 2023

J. Electrochem. Soc.

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Here, a monometallic supramolecular polymer (SMP) was synthesized for the fabrication of an electrochemical nitrite sensor, and a mechanism for nitrite detection was proposed based on the experimental findings. The SMP (polyFe) was synthesized using a symmetrical ligand containing terpyridine moieties [4′,4′′′′-(1,4- Phenylene) bis(2,2′:6′,2′′-terpyridine)] and ferrous acetate. Various analytical methods, such as ultraviolet/visible titration, field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, and energy dispersive X-ray spectroscopy, were used to characterize polyFe. The molecular weight of polyFe was calculated from the intrinsic viscosity measurement using the Mark-Houwink-Sakurada equation. The electrochemical behavior of the fabricated sensor was investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy. The variation in scan rate from CV was used to investigate the kinetics of nitrite oxidation. A possible reaction mechanism was proposed based on the kinetic studies. The proposed sensor showed a good linear range of 2.49 µM to 1.23 mM and a limit of detection of 0.17 µM. Stability, interference, and reproducibility of the proposed sensor were also investigated. The CV technique was used to demonstrate the applicability of the nitrite sensor for real sample analysis. A satisfactory recovery with a low relative standard deviation was achieved.

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Section: Resultsmentioning

confidence: 99%

Fe(II)-Based Metallo-Supramolecular Polymer Film for Electrochemical Detection of Nitrite: Studies of Kinetics and Reaction Mechanisms

Awal

Mia

Sarkar

et al. 2023

J. Electrochem. Soc.

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“…In addition, taffel plot analysis revealed that two electrons participate in the oxidation of HQ and CT. Hence oxidation of HQ and CT at Co 3 O 4 NR-GCE is a two proton and two electron transfer process [6].…”

Section: Probable Oxidation Mechanism Of Hq and Ct At Co3o4nr-gcementioning

confidence: 99%

“…There was no significant effect on the electrochemical response of HQ and CT for the metal ions and common ions. In cases of other similar structure of HQ and CT (phenol, 2-nitrophenol, 4-nitrophenol, resorcinol), CV was performed in 0.5 mM individual solutions in potential windows of 0-1 V, following reported procedures [6,44]. Phenol, 2-nitrophenol, and 4-nitrophenol did not respond at the modified electrode, while resorcinol showed an oxidation peak at 0.842 V, which was out of our potential window.…”

Section: Repeatability Stability and Interference Studiesmentioning

confidence: 99%

“…They are easily introduced into the environment due to their use in such manufacturing fields. It has been reported that the toxic and poor biodegradable nature of HQ and CT are detrimental to the environment and humans even if they are present at low concentration [2][3][4][5][6]. They can easily enter into the human body through digestive and respiratory systems.…”

Section: Introductionmentioning

confidence: 99%

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Cobalt Oxide Nanorod-Modified GCE as Sensitive Electrodes for Simultaneous Detection of Hydroquinone and Catechol

et al. 2022

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An electrochemical sensor based on a cobalt oxide nanorod (Co3O4NR) modified glassy carbon electrode (GCE) (Co3O4NR-GCE) was prepared for simultaneous and selective determination of hydroquinone (HQ) and catechol (CT). Surface morphology and crystallinity of Co3O4NR were investigated employing field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analysis. The structure (16 nm) of the Co3O4 nanorod was observed in the FESEM image. A sharp peak pattern in the XRD survey revealed the following crystal planes in Co3O4NR material: (111), (220), (311), (222), (400), (422), (511), and (440). Electrochemical characterization of modified Co3O4NR-GCE was carried out performing cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Selective and simultaneous detection of HQ and CT was carried out by performing CV and differential pulse voltammetry (DPV) analysis. In both studies, modified Co3O4NR-GCE showed well defined oxidation and reduction peaks for HQ and CT with enhanced peak current, and the oxidation peaks for HQ and CT were observed at 0.152 V and 0.254 V, respectively, in the CV analysis. Scan rate and pH variation analysis were performed to evaluate different kinetic parameters, including charge transfer coefficient (α = 0.56 for HQ and 0.66 for CT), heterogeneous charge transfer rate constant (ks = 56 for HQ and 72 for CT), and the number of electrons involved in HQ and CT oxidation. Quantitative analysis of HQ and CT was studied by observing the current response of DPV analysis with respect to concentration variation. Here, the detection limit was calculated as 0.2 µM for HQ with a linear concentration range of 5–200 µM, and 0.4 µM for CT with a linear concentration range of 5–150 µM. The practical applicability of the proposed sensor was investigated using sample solutions prepared in tap water. The reported sensor showed impressive selectivity towards HQ and CT in the presence of common interferents.

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“…In recent years, three-dimensional (3D) porous carbon nanosheet (PCN) networks with large exposed surfaces and heteroatom doping have great potential in EC sensors due to their surface characteristics including surface area, porosity, and electron/ion transport protocols. Additionally, the presence of sulfur (S), nitrogen (N), and metal doping in biomass materials results in an increase in the efficiency of a reaction due to more active sites in EC sensors, catalysis, fuel cells, energy storage, and so on. − Because good bonding of heteroatoms can enhance sorption, excellent conductance, and rich surface wettability, abundant surface functional groups facilitate ion diffusions and rapid electron transfer kinetics in biological samples …”

Section: Introductionmentioning

confidence: 99%

Octahedral Pt–Ni Alloy Nanoparticles Decorated on 3D Interconnected Porous Carbon Nanosheets for Voltammetric Determination of Dihydroxybenzene Isomers

Veerakumar,

Sangili,

Chen

et al. 2023

ACS Appl. Nano Mater.

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Ultrathin three-dimensional (3D) interconnected porous carbon nanosheets (PCNs) derived from Moringa oleifera barks (commonly known as the drumstick tree) with electrochemical (EC) sensor performance was employed as the carbon precursor. In this study, we described a simple one-step pyrolysis technique to generate hierarchical PCN using a high-temperature pyrolysis and KOH activation procedure. Using the microwave-solvothermal approach, platinum–nickel bimetallic octahedral nanoparticles were decorated on ultrathin 3D PCN (referred to as Pt–Ni@PCN). The morphological, structural, and EC properties of the Pt–Ni@PCN nanocomposite were well characterized. Using cyclic voltammetry and linear sweep voltammetry, the dihydroxybenzene (DHB) isomers hydroquinone, catechol, and resorcinol were identified individually as well as simultaneously. The screen-printed carbon electrode-modified nanocomposite [Pt–Ni@PCN/screen-printed carbon electrode (SPCE)] served as an outstanding electron (e–)-transfer mediator for DHB isomer oxidation, yielding limits of detection of 0.0093, 0.0263, and 0.0529 μM, respectively. Also, the Pt–Ni@PCN/SPCE sensor has exceptional selectivity, long-term durability, reproducibility, repeatability, and anti-interference. Furthermore, the proposed sensor can be exploited to detect simultaneously environmental pollutants in river, lake, and tap water samples with good recovery rates.

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Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Cited by 8 publications

References 67 publications

Fe(II)-Based Metallo-Supramolecular Polymer Film for Electrochemical Detection of Nitrite: Studies of Kinetics and Reaction Mechanisms

Fe(II)-Based Metallo-Supramolecular Polymer Film for Electrochemical Detection of Nitrite: Studies of Kinetics and Reaction Mechanisms

Cobalt Oxide Nanorod-Modified GCE as Sensitive Electrodes for Simultaneous Detection of Hydroquinone and Catechol

Octahedral Pt–Ni Alloy Nanoparticles Decorated on 3D Interconnected Porous Carbon Nanosheets for Voltammetric Determination of Dihydroxybenzene Isomers

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