Electrochemical sensor based on laser-induced preparation of MnOx/rGO composites for simultaneous recognition of hydroquinone and catechol

Liu, Guanying; Li, Jun; Pan, Peng; Wang, Zhiyong; Yang, Zhengchun; Wei, Jun; Cao, Shanxu; Shen, Haodong; Zhou, Jie; Zhang, Xiaodong

doi:10.1016/j.microc.2022.108234

Cited by 26 publications

(8 citation statements)

References 47 publications

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“…As shown in Table I, the linear range and LOD of Cu/N-C/GCE are comparable to other sensors or even better than some sensors, suggesting that Cu/N-C/GCE exhibits good sensing performance for the simultaneous detection of CC and HQ. [40][41][42][43][44][45] Selectivity, reproducibility and stability.-The selectivity of Cu/ N-C/GCE was evaluated in the PBS containing 50 μM CC and HQ with interfering substances by DPV method. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

Wang

Liu

Zhang

et al. 2023

J. Electrochem. Soc.

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Cu/N-C derived from MOF composites were synthesized and characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy, which was modified on the glassy carbon electrode (GCE) to construct a novel electrochemical sensor (Cu/N-C/GCE). Due to the good electrical conductivity and abundant catalytic active sites of Cu/N-C, Cu/N-C/GCE exhibited excellent electrocatalytic performance for catechol (CC) and hydroquinone (HQ) with the oxidation peak potential difference of 112 mV. The proposed sensor could realize the simultaneous detection of CC and HQ successfully. Under optimal conditions, the redox peak currents of both CC and HQ have good linear relationship with their concentrations in the ranges of 0.50-100.00 μM and 0.50-150.00 μM with the detection limits for CC and HQ of 0.12 and 0.09 μM, respectively. At the same time, the sensor exhibits good stability, reproducibility and selectivity in the analysis of practical samples.

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Section: Resultsmentioning

confidence: 99%

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

Wang

Liu

Zhang

et al. 2023

J. Electrochem. Soc.

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“…The slopes of EIS corresponding to the lowfrequency region is greater than 45°for HC/GCE and LC/GCE, which exhibit better conductivities and diffusivities to HQ and CC. [60] These phenomena indicated that the modified carbons have high conductivities to increase electron transfer rates on the electrode surfaces. It provides great potential for the application of electrode materials and electrochemical sensing.…”

Section: Electrochemical Performance Of the Wbm-pcs-modified Electrodesmentioning

confidence: 99%

Simultaneous Electrochemical Determination of Hydroquinone and Catechol by Lignocellulose Biopolymers Derived Porous Carbon

Zhang,

Lu,

Zhao

et al. 2023

ChemistrySelect

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Hemicellulose and lignin, which are main components of wood biomass with different structures, were carbonized and activated by KOH to prepare wood biomass‐derived porous carbons (WBM‐PCs). The resulting WBM‐PCs were characterized by SEM, XRD, Raman, FI‐IR, and N2‐adsorption/desorption isotherms, and successfully utilized as an effective modifier on the glassy carbon electrode surface (GCE) for simultaneous electrochemical determination of dihydroxybenzene isomers, i. e. hydroquinone (HQ) and catechol (CC), which are highly toxic and non‐degradable. The resulting WBM‐PCs‐modified GCEs allowed simultaneous determination of HQ and CC with cyclic voltammetry and constant‐potential amperometry. The linear range for determination of HQ by hemicellulose‐derived carbon (HC) was from 1.0 to 3000 μmol/L with the limit of detection (LOD) of 1.05 μmol/L, and that for CC was from 1.0 to 5000 μmol/L with LOD of 0.4 μmol/L. For lignin‐derived carbon (LC), the linear range for HQ was from 0.5 to 1000 μmol/L with LOD of 0.095 μmol/L, and that for CC was from 0.5 to 3000 μmol/L with LOD of 0.15 μmol/L. These results imply that wood biomass (hemicellulose and lignin), which is sustainable, renewable and environment‐friendly material, have potential as an effective precursor of electrochemically active porous carbon materials applicable to various electrochemical sensors.

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“…Table 1 provides a comparison of the analytical characteristics between the proposed method and other voltammetric approaches utilizing various electrodes for catechol quantification. [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] The graphite-coated electrode, as described in this study, stands out in various aspects, while maintaining comparable performance in terms of linear concentration range and limit of detection. One of its primary advantages lies in its cost-effectiveness.…”

Section: Analytical Performances Of the Voltammetric Determination Of...mentioning

confidence: 99%

An Affordable and Efficient Graphite‐Coated Electrode for the Voltammetric Determination of Catechol

Stoytcheva,

Velkova,

Gochev

et al. 2024

ChemistrySelect

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An affordable and highly efficient graphite‐coated electrode was developed and applied in this work as a compelling alternative to other modified electrodes in catechol determination. Electrode modification involved a simple deposition process using a commercial graphite dispersion, Aquadag®Acheson. Morphological and electrochemical studies revealed the formation of a uniform layer with enhanced surface area and significant conductivity. Catechol quantification was successfully achieved in the linear concentration range extended up to 80 μmol L−1 with a detection limit of 0.5 μmol L−1 under optimized conditions (pH 7 and an accumulation time of 2 min). Spike‐and‐recovery experiments validated the accuracy of the determination. Unlike hydroquinone, structurally similar compounds such as phenol and resorcinol did not interfere with catechol analysis. The interference posed by hydroquinone was addressed by derivative treatment of the voltammograms allowing peaks resolution.

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Electrochemical sensor based on laser-induced preparation of MnOx/rGO composites for simultaneous recognition of hydroquinone and catechol

Cited by 26 publications

References 47 publications

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

Simultaneous Electrochemical Determination of Hydroquinone and Catechol by Lignocellulose Biopolymers Derived Porous Carbon

An Affordable and Efficient Graphite‐Coated Electrode for the Voltammetric Determination of Catechol

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