Highly porous nickel molybdate@graphene oxide nanocomposite for the ultrasensitive electrochemical detection of environmental toxic pollutant catechol

Boopathy, Gopal; Keerthi, Murugan; Chen, Shen‐Ming; Umapathy, M. J.; Kumar, Baskaran Naresh

doi:10.1016/j.matchemphys.2019.121982

Cited by 34 publications

(15 citation statements)

References 43 publications

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“…This solubility has been harnessed to synthesize GO/metal oxide nanocomposite in aqueous solution. Boopathy et al [44] . used a binary metal oxide (nickel molybdate compounds (NiMoO 4 )) instead of a single metal oxide due to the higher conductivity of the former over the latter and subsequently used ultrasonication to prepare a NiMoO 4 @GO nanocomposite.…”

Section: Selective Detection Of Ctmentioning

confidence: 99%

“…Therefore, highly susceptible analytical methods for the simultaneous and selective detection of these three isomers are necessary. Different analytical techniques are applied for the selective, simultaneous detection of HQ, CT, and RS, such as high‐performance liquid chromatography (HPLC), [3,42,45,50,64] chemiluminescence, [37,43,47,52,65] spectrophotometry, [35,38,44,47,53] fluorescence, [17,33,39,51] gas chromatography/mass spectrometry (GC−MS), [15,22,46,51,63] pH‐based flow‐injection analysis, [29,40,57,71] capillary electrophoresis, [5,24,54,62] UV‐Vis spectroscopy, [56] colorimetry, [55,68] and electrochemical techniques [37–47,58–61,65–70] …”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Nayem

Shah

Sultana

et al. 2021

The Chemical Record

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Dihydroxybenzene is regarded as a serious environmental pollutant. Its detection through electrochemical methods is still challenging due to having a similar structure and overlapping signals with the conventional bare electrode. Thanks to the unique features and wide applicability of carbon nanotubes, graphene, and their derivatives, they can be used as modifiers to overcome the poor resolution ability of bare electrodes in the detection of dihydroxybenzene. This review focuses on the use of carbon nanotubes, graphene, and their derivatives and nanocomposites to enhance the electrocatalytic activity of conventional bare electrodes for dihydroxybenzene sensing. The reports from 2011–2020 on the simultaneous and/or individual detection of three different dihydroxybenzenes – hydroquinone, catechol, and resorcinol – are summarized. This review also highlights the challenges and prospects surrounding the sensitive and selective detection of dihydroxybenzene.

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Section: Selective Detection Of Ctmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Nayem

Shah

Sultana

et al. 2021

The Chemical Record

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“…Boopathy et al [154] developed an rGO-based sensor for the detection of catechols. They used a facile ultrasonic synthesis process to prepare a nickel molybdate@rGO nanocomposite, which presented great electrocatalytic activity owing to the π-π interactions between rGO and catechols.…”

Section: Environmental Monitoring Applicationsmentioning

confidence: 99%

Structure, Properties, and Electrochemical Sensing Applications of Graphene‐Based Materials

et al. 2020

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Owing to their versatility and unique characteristics, graphene‐based materials have been used extensively for the development of electrochemical sensors and biosensors. The key to the maximum potential of these materials is the understanding of the role their structure plays in their modification processes. Herein, we summarize some structural characteristics of graphene oxide (GO) and reduced graphene oxide (rGO) and explore different surface modification methods for electrochemical sensing applications. surveyed the most recent applications of these materials as (bio)sensors, particularly for environmental monitoring and health‐related applications, such as quantification of biomarkers and metabolites and detection of cancer cells. The low detection limits, selectivity toward target molecules, and robustness of GO‐ and rGO‐based electrodes render them critical materials for the preparation of sensors for routine analysis and monitoring.

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“…28−30 Nowadays, electrochemical determinations are sensitive, portable, low-cost tools for monitoring environmental toxins. 31−33 Various combinations of materials are used for analyzing the electrochemical redox behavior of CC, 34 and in this work, the Mg-Al LDHs are used as fabricated electrode materials toward nonenzymatic catechol sensor.…”

Section: ■ Introductionmentioning

confidence: 99%

Insights into the Design and Electrocatalytic Activity of Magnesium Aluminum Layered Double Hydroxides: Application to Nonenzymatic Catechol Sensor

Arumugam¹,

Ramaraj²

2022

Langmuir

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The design of an efficient electrocatalyst for effective trace level determinations of noxious synthetic and or biological compounds is the unceasingly noteworthy conceptual approach for rapid technology. In this work, we designed a magnesium-aluminum layered double hydroxides (Mg-Al LDHs) nanocatalyst and applied it to the electrocatalytic determination of an extremely carcinogenic catechol sensor. A coprecipitation method was employed for synthesizing the nanocatalyst, and the structure, porous nature, and morphology were confirmed by X-ray diffraction, Fourier transform infrared spectroscopy, N 2 adsorption−desorption isotherm, field emission-scanning electron microscopy, and transmission electron microscopy. The elemental composition was observed by energy dispersive X-ray analysis. The electrochemical studies were investigated with the help of cyclic voltammetry and differential pulse voltammetry techniques. The Mg-Al LDHs-based electrocatalyst was used to detect catechol by electrochemical measurements with different parameters. The proposed catechol sensor shows a wide dynamic range (0.007−200 μM) with a lower level of detection (2.3 nm) and sensitivity (3.57 μA μM −1 cm −2 ). The excellent sensor performance is attributed to the high surface area, fast electron transfer, more active sites, and excellent flexibility. This study depicts the proposed sensor as probable to practical in a scientific investigation. In addition, the modified electrode showed greater selectivity and was used in the detection of fatal contaminants in instant treatment strategies. Moreover, the Mg-Al LDHs confirmed auspicious real sample scrutiny with noteworthy retrieval outcomes in lake water samples which exposed improved consequences.

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Highly porous nickel molybdate@graphene oxide nanocomposite for the ultrasensitive electrochemical detection of environmental toxic pollutant catechol

Cited by 34 publications

References 43 publications

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Structure, Properties, and Electrochemical Sensing Applications of Graphene‐Based Materials

Insights into the Design and Electrocatalytic Activity of Magnesium Aluminum Layered Double Hydroxides: Application to Nonenzymatic Catechol Sensor

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