Graphene-porphyrin composite synthesis through graphite exfoliation: The electrochemical sensing of catechol

Coroș, Maria; Pogăcean, Florina; Măgeruşan, Lidia; Roşu, Marcela‐Corina; Porav, Alin Sebastian; Socaci, Crina; Bende, Attila; Staden, Raluca‐Ioana Stefan‐van; Pruneanu, Stela

doi:10.1016/j.snb.2017.09.205

Cited by 52 publications

(21 citation statements)

References 39 publications

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“…CC and HQ were shown to be more reactive due to the position of OH groups contributing towards more resonating structures and increased conjugated behavior of the aromatic structure thus enhancing the rate of release of protons in both the isomers. Therefore due to the active nature of CC and HQ these are diffused more conveniently to the surface of CNCs/Zn-TPP/GCE modified electrode and undergo redox reaction as compared to RS that is less activated and only oxidation peak is observed for it 65 . Figure S7 represents the results of DPV of ternary mixture containing all the three isomers i.e., 500 µM each of CC, HQ and RS which clearly indicates that these isomers appear at different potentials with well resolved peaks and high selectivity of fabricated electrode is observed.…”

Section: Resultsmentioning

confidence: 99%

Supramolecular assemblies of carbon nanocoils and tetraphenylporphyrin derivatives for sensing of catechol and hydroquinone in aqueous solution

Bukhari

Nasir

Pan

et al. 2021

Sci Rep

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Non-enzymatic electrochemical detection of catechol (CC) and hydroquinone (HQ), the xenobiotic pollutants, was carried out at the surface of novel carbon nanocoils/zinc-tetraphenylporphyrin (CNCs/Zn-TPP) nanocomposite supported on glassy carbon electrode. The synergistic effect of chemoresponsive activity of Zn-TPP and a large surface area and electron transfer ability of CNCs lead to efficient detection of CC and HQ. The nanocomposite was characterized by using FT-IR, UV/vis. spectrophotometer, SEM and energy dispersive X-ray spectroscopy (EDS). Cyclic voltammetry, differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy were used for the electrochemical studies. CNCs/Zn-TPP/GCE nanosensor displayed a limit of detection (LOD), limit of quantification (LOQ) and sensitivity for catechol as 0.9 µM, 3.1 µM and 0.48 µA µM−1 cm−2, respectively in a concentration range of 25–1500 µM. Similarly, a linear trend in the concentration of hydroquinone detection was observed between 25 and 1500 µM with an LOD, LOQ and sensitivity of 1.5 µM, 5.1 µM and 0.35 µA µM−1 cm−2, respectively. DPV of binary mixture pictured well resolved peaks with anodic peak potential difference, ∆Epa(CC-HQ), of 110 mV showing efficient sensing of CC and HQ. The developed nanosensor exhibits stability for up to 30 days, better selectivity and good repeatability for eight measurements (4.5% for CC and 5.4% for HQ).

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Section: Resultsmentioning

confidence: 99%

Supramolecular assemblies of carbon nanocoils and tetraphenylporphyrin derivatives for sensing of catechol and hydroquinone in aqueous solution

Bukhari

Nasir

Pan

et al. 2021

Sci Rep

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“…Electrochemical graphite exfoliation is predestined for simplification as the preparation procedure and material functionalization can be combined to one step, which was proved for a graphene-porphyrin compound. Graphite was exfoliated electrochemically with porphyrin as intercalant, simultaneously functionalizing graphene flakes by π-interaction, introducing an oxidizing agent for catechol [81]. Apparently, the material exfoliated by means of additional salts weakens the performance of the established electrochemical sensor with regard to liquid-phase exfoliation of graphene derived solely by exfoliation in appropriate solvent.…”

Section: Impedimetric Amperometric Voltammetric Sensorsmentioning

confidence: 99%

“…Intermolecular interactions with materials exhibiting a π system are feasible [ 75 , 77 – 79 ]. Especially porphyrins are promising, as they exhibit a metallic core, which can mimic enzymatic-like reactions or induce a change in the physical properties of graphene resulting in an opened bandgap, potentially tuning its intrinsic characteristics [ 80 , 81 ]. One has to be cautious as there is no bandgap control upon non-covalent functionalization, which might be used in maximizing the detection sensitivity by minimizing the electrical noise [ 76 ].…”

Section: Functionalizationmentioning

confidence: 99%

Recent developments in carbon-based two-dimensional materials: synthesis and modification aspects for electrochemical sensors

Kirchner

Hirsch

2020

Microchim Acta

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This review (162 references) focuses on two-dimensional carbon materials, which include graphene as well as its allotropes varying in size, number of layers, and defects, for their application in electrochemical sensors. Many preparation methods are known to yield two-dimensional carbon materials which are often simply addressed as graphene, but which show huge variations in their physical and chemical properties and therefore on their sensing performance. The first section briefly reviews the most promising as well as the latest achievements in graphene synthesis based on growth and delamination techniques, such as chemical vapor deposition, liquid phase exfoliation via sonication or mechanical forces, as well as oxidative procedures ranging from chemical to electrochemical exfoliation. Two-dimensional carbon materials are highly attractive to be integrated in a wide field of sensing applications. Here, graphene is examined as recognition layer in electrochemical sensors like field-effect transistors, chemiresistors, impedance-based devices as well as voltammetric and amperometric sensors. The sensor performance is evaluated from the material’s perspective of view and revealed the impact of structure and defects of the 2D carbon materials in different transducing technologies. It is concluded that the performance of 2D carbon-based sensors is strongly related to the preparation method in combination with the electrical transduction technique. Future perspectives address challenges to transfer 2D carbon-based sensors from the lab to the market.

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“…Previous studies indicated that this enhancement is related to the p-p interaction taking place between electron-abundant aromatic rings and conjugated surfaces of graphene, which enables the electron transfer. [34][35][36] This interaction can be captured by the UV-vis absorption spectra. As shown in Fig.…”

Section: Optoelectronic Propertymentioning

confidence: 99%

Photoelectric and flexible poly(styrene-b-ethylene/butylene-b-styrene)-zinc porphyrin–graphene hybrid composite: synthesis, performance, and mechanism

Tang

et al. 2018

RSC Adv.

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Graphene-porphyrin composite synthesis through graphite exfoliation: The electrochemical sensing of catechol

Cited by 52 publications

References 39 publications

Supramolecular assemblies of carbon nanocoils and tetraphenylporphyrin derivatives for sensing of catechol and hydroquinone in aqueous solution

Supramolecular assemblies of carbon nanocoils and tetraphenylporphyrin derivatives for sensing of catechol and hydroquinone in aqueous solution

Recent developments in carbon-based two-dimensional materials: synthesis and modification aspects for electrochemical sensors

Photoelectric and flexible poly(styrene-b-ethylene/butylene-b-styrene)-zinc porphyrin–graphene hybrid composite: synthesis, performance, and mechanism

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