N-doped carbon nanotube frameworks modified electrode for the selective sensing of hydroquinone and catechol

Zheng, Xinyu; Hu, Yingcai; Li, Huizi; Han, Bolun; Lin, Ruiyu; Huang, Biao

doi:10.1016/j.jelechem.2020.113968

Cited by 24 publications

(9 citation statements)

References 48 publications

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“…The corresponding calibration plots at the applied potential of 0.11 V, 0.21 V and 0.83 V for HQ, CC and KNO 2 were calculated in Figure 6d-f The performances of PPC-900/GCE were compared with other reported HQ and CC electrochemical sensors. As showed in Table 1, [3,27,[63][64][65][66][67][68] The PPC-900/GCE sensor not only exhibited the best linear range, but also possessed excellent limit of detection (LOD) among the selected researches. Meanwhile, the PPC-900/GCE also exhibits the excellent performance of nitrite which compared with other reported sensors are listed in Table 2.…”

Section: Electrochemical Amperometric Determination Of Hq CC and Knomentioning

confidence: 99%

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Wang

Zhu

et al. 2022

ChemistrySelect

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In this study, popcorn‐derived microporous carbon (PPC) was prepared by pyrolysis method under KOH activation, which was used as an electrochemical sensor material for simultaneous detection of hydroquinone (HQ), catechol (CC), and nitrite (NT). The prepared PPC/GCE exhibited highly electrocatalytic activity to the oxidation of HQ, CC and nitrite. The oxidation peaks for HQ (111 mV), CC (216 mV), and NT (854 mV) were well separated under the optimized conditions. The PPC/GCE showed a wide linear range of 3.0–700 μM, 3.0–500 μM and 5.0–10000 μM for HQ, CC and NT with detection limits of 1.45 μM, 0.49 μM and 1.5 μM, respectively. The KOH‐activated PPC is a promising electrode material for fabricating selective and sensitive electrochemical sensors.

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Section: Electrochemical Amperometric Determination Of Hq CC and Knomentioning

confidence: 99%

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Wang

Zhu

et al. 2022

ChemistrySelect

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“…As shown in Figure e, the deconvolution results identified the presence of C–C and CC bonds, which were attributed to the carbon fiber and N-CNTs. It also identified several functional groups that might exist on carbon materials, including C–N, C–O, and CO Figure f shows the spectrum of N 1s.…”

Section: Resultsmentioning

confidence: 99%

“…It also identified several functional groups that might exist on carbon materials, including C−N, C−O, and C�O. 34 Figure 2f shows the spectrum of N 1s. According to the deconvolution process, it is determined that pyrrolic N and graphitic N come from N-CNTs.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Shi

et al. 2022

ACS Sustainable Chem. Eng.

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Electrochemical sensing is an effective method for trace determination of specific substances. However, there are many active substances in plants, and the pH environment of plant organs varies. These factors directly affect the performance of electrochemical sensors and make it difficult to realize real-time detection accurately. Here, an online intelligent monitoring system for indole-3-acetic acid (IAA) was proposed, including reusable microsensor, portable electrochemical workstation, and online cloud platform. The microsensor was fabricated by depositing nanocomposites of nitrogen-doped carbon nanotubes/core–shell Au@Cu2O nanoparticles on the carbon fiber microelectrode. The IAA microsensor has a wide concentration range of 1–10 000 ng/mL and an ultralow detection limit of 10.8–57.8 pg/mL at a pH range of 4–8. The influence of different pH values on IAA detection was investigated. It is also revealed that the IAA microsensor has good anti-interference ability, repeatability, and stability which are suitable for real-time detection of IAA in living plants. Artificial neural network (ANN) algorithm is employed to establish the relationship between electrochemical signal and IAA concentration, and the ANN model is then configured in the online monitoring system to intelligently obtain the IAA concentration. Based on this system, real-time and online monitoring of the IAA concentration in a living cabbage stem was realized for a long time of 12 h. This study provides a feasible solution based on electrochemical sensing to monitor online the living plant for precision agriculture.

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“…Dihydroxybenzene (DHB) isomers like catechol (CA) and hydroquinone (HY) are extensively utilized in the agronomic practices and chemical industry, such as tanning, plastic, pesticides, dyes, rubber, pharmaceuticals and so forth 1 – 6 . Nevertheless, DHB is venomous and hard to degrade, menacing the environment and crippling animal and human health, it leads to incurring the harm to kidney and liver function affected by CA and HY have also been reported 7 – 12 . In addition, simultaneously sensing of CA and HY is tough because they mutual interfere with each other during their identification because of their similar structures, properties and coexistence 13 , 14 .…”

Section: Introductionmentioning

confidence: 99%

An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode

Chetankumar

Swamy

Sharma

et al. 2021

Sci Rep

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In this proposed work, direct green 6 (DG6) decorated carbon paste electrode (CPE) was fabricated for the efficient simultaneous and individual sensing of catechol (CA) and hydroquinone (HY). Electrochemical deeds of the CA and HY were carried out by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at poly-DG6-modfied carbon paste electrode (Po-DG6-MCPE). Using scanning electron microscopy (SEM) studied the surface property of unmodified CPE (UCPE) and Po-DG6-MCPE. The decorated sensor displayed admirable electrocatalytic performance with fine stability, reproducibility, selectivity, low limit of detection (LLOD) for HY (0.11 μM) and CC (0.09 μM) and sensor process was originated to be adsorption-controlled phenomena. The Po-DG6-MCPE sensor exhibits well separated two peaks for HY and CA in CV and DPV analysis with potential difference of 0.098 V. Subsequently, the sensor was practically applied for the analysis in tap water and it consistent in-between for CA 93.25–100.16% and for HY 97.25–99.87% respectively.

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N-doped carbon nanotube frameworks modified electrode for the selective sensing of hydroquinone and catechol

Cited by 24 publications

References 48 publications

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode

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N-doped carbon nanotube frameworks modified electrode for the selective sensing of hydroquinone and catechol

Cited by 24 publications

References 48 publications

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu2O Nanoparticles/Carbon Fiber Electrochemical Microsensor

An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode

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Product

Resources

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Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor