Fullerene‐β‐Cyclodextrin Conjugate Based Electrochemical Sensing Device for Ultrasensitive Detection of p‐Nitrophenol

Rather, Jahangir Ahmad; Debnath, Pradip; Wael, Karolien De

doi:10.1002/elan.201300304

Cited by 21 publications

(12 citation statements)

References 18 publications

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“…A variety of nanomaterials such as α‐MnO 2 nanotubes , codoped Mn 2 O 3 ‐ZnO nanoparticles nanoporous gold films , CoO x nanostructures , Co 3 O 4 nanostructures , ZnO microstructures , copper oxide nanoparticles , nano gold , copper nanoparticles , multi‐walled carbon nanotubes , single walled carbon nanotubes , SWCNT/pyrenecycodextrin nanohybrids , chitosan/phenyltrimethoxysilane/AuNPs hybrid films , fullerene‐β‐cyclodextrin cojugates , hybrid inorganic‐organic coating based on prussian blue and polyazulene derivatives have been employed to modify glassy carbon or metal electrodes for the electrochemical detection of p‐NP.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

2017

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para‐Nitrophenol (p‐NP) is a high priority environmental pollutant. For the sake of safety, sensitive detection of its presence in water resources and food is highly important. The present article describes the use of copper metal nanoparticles for selective and sensitive electrochemical detection of p‐NP in pure and real sample. For this the gold electrode was fabricated by polyvenylpyrrolidone stabilized copper metal nanoparticles (ca. 4 nm d.) via self‐assembled 4,4′‐bipyridine monolayer and characterized by microscopic and electrochemical techniques. The newly developed sensor permits for sensitive detection of p‐NP in a linear concentration range of 1–500 μM with lowest detection limit of 0.34 nM and high sensitivities 247.1 μA cm−2 μM−1. The sensor electrode exhibited high stability, reproducibility, good selectivity in the presence of potential interfering agents and had an excellent capability for the selective determination of p‐NP in river water without preliminary treatments.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

2017

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“…Several interesting studies on the oxidation and reduction of 4-NP have been reported using various fabricated electrodes such as glassy carbon electrode (GCE), graphene, carbon nanotubes (CNTs), ordered mesoporous carbons, fullerene-b-cyclodextrin, poly(methylene blue), silver nanoparticles, and nano porous gold. 10,11,[13][14][15][16][17][18][19][20][21][22][23] Nonetheless, a majority of research work is focusing on electrocatalytic activity of electrode materials rather than the sensitivity and selectivity of 4-NP detection.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical detection of 4-nitrophenol based on biomass derived activated carbons

et al. 2014

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A novel method for detecting an environmental pollutant, 4-nitrophenol (4-NP), by exploiting biomass-derived activated carbon (AC) is reported. The electrochemical performances of the 4-NP sensor were assessed by cyclic and linear sweep voltammetries. The presence of oxygen surface functional groups and heteroatoms (72.6% C, 6.1% H, 6.5% N, and 7.5% S) in the biomass-derived AC with high surface area (1555 m 2 g À1 ) are found to be responsible for the excellent catalytic activities and reversible redox behaviors observed during the detection of 4-NP. The effects of pH of the electrolyte buffer solution, accumulated potential and duration as well as the analyte concentration on the electrocatalytic performance of the sensor were investigated. Consequently, a linear correlation between the cathodic reduction peak current with 4-NP concentration up to 500 mM with a detection limit and sensitivity of 0.16 mM and 5.810 mA mM À1 cm À2 , respectively, were observed over the AC-modified GCE in 0.05 M acetate buffer solution (pH 5.0), surpassing the existing modified electrodes in the literature. The facile 4-NP sensor thus implemented is also advantageous for its simplicity, stability, reliability, durability, and low cost, rendering practical applications for real sample systems.

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“…The reduction peak current of pÀ NP exhibited linear proportionality to the square root of scan rate of 20-100 mVs À 1 with a linear regression equation I pc (μA) = 0.1153 p ν + 4.3616 (R 2 = 0.9937) (Figure 5b) suggesting that the reduction of pÀ NP at NiOÀ NPs-α-CD-rGO-GCE was a diffusion controlled process [69].For fully irreversible electron transfer process the Randles-Sevcik equation [70] is Scheme 2. Mechanism of electrochemical reduction of pÀ NP to p-AP via p-(hydroxyamino)phenol (p-HAP) and p-QI intermediates and oxidation of electrogenerated p-AP to p-QI at NiOÀ NPs-α-CD-rGO-GCE [34,66].…”

Section: Kinetics Of the Electrode Reactionmentioning

confidence: 99%

Electrochemical Sensor for Detection of p‐Nitrophenol Based on Nickel Oxide Nanoparticles/α‐Cyclodextrin Functionalized Reduced Graphene Oxide

et al. 2020

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p‐Nitrophenol (p−NP) is a high priority toxic pollutant and that has harmful effects on human, animals and plants. Thus, the detection and determination of p−NP present in the environment is an urgent as well as highly important requisite. The present article, therefore focused on the construction of a novel electrochemical sensor based on NiO nanoparticles/α‐cyclodextrin functionalized reduced graphene oxide modified glassy carbon electrode (NiO−NPs‐α‐CD‐rGO‐GCE) for the selective and sensitive detection of p−NP. UV‐vis, high resolution transmission electron microscopy (HR‐TEM), selected area electron diffraction pattern (SAED) and X‐ray diffraction (XRD) analysis confirms the formation of highly pure NiO nanoparticles. Field emission scanning electron microscopy (FE‐SEM), energy dispersive X‐ray spectroscopy (EDS), and cyclic voltammetry (CV) were used to characterize the step‐wise electrode modification process. DPV was carried out to quantify p−NP within the concentration range of 1−10 μM and found the detection limit of 0.12 nM on the basis of the signal‐to‐noise ratio S/N=3. The electrode can able to detect different isomers of nitrophenols. Interferences of other pollutants such as phenol, p‐aminophenol, o‐ and m‐ nitrophenol, 4‐chlorophenol, 2,6‐dichlorophenol and ions like K+, Cd2+, Cl−, SO42− did not affect the sensing of p−NP. The newly developed sensor exhibited diffusion controlled kinetics and had excellent sensitivity, selectivity and reproducibility for the detection of p−NP. The electrode showed good recoveries in real sample analysis.

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Fullerene‐β‐Cyclodextrin Conjugate Based Electrochemical Sensing Device for Ultrasensitive Detection of p‐Nitrophenol

Cited by 21 publications

References 18 publications

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

Electrochemical detection of 4-nitrophenol based on biomass derived activated carbons

Electrochemical Sensor for Detection of p‐Nitrophenol Based on Nickel Oxide Nanoparticles/α‐Cyclodextrin Functionalized Reduced Graphene Oxide

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