Short rod-like Ni-MOF anchored on graphene oxide nanosheets: A promising voltammetric platform for highly sensitive determination of p-chloronitrobenzene

Gao, Jun; He, Ping; Yang, Tiantian; Wang, Xuejiao; Zhou, Lianhong; He, Qihang; Jia, Lingpu; Deng, Huiping; Zhang, Hui; Jia, Baohua; He, Xiancong

doi:10.1016/j.jelechem.2020.113954

Cited by 35 publications

(13 citation statements)

References 64 publications

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“…The G and D bands of GO are located at 1600 and 1353 cm –1 , respectively. The G band corresponds to the vibration of sp 2 carbon atoms, while the D band is related to the disordered carbon of the edge and defect sites. , Several bands of MIL-101(Fe) are mainly related to the organic ligands, the bands at 1433 and 1145 cm –1 are assigned to CO in the carboxylic group and the C–C bond of the benzene ring, respectively, and the band appeared at 860 cm –1 is ascribed to the vibrations of C–H and the benzene ring. The characteristic bands of GO and MIL-101(Fe) appear in the GO/MIL-101(Fe) composite and the red Raman shift (D and G bands) of GO in the composite is located at 1360 and 1608 cm –1 , indicating that the interaction between GO and MIL-101(Fe) is in line with the result of XRD.…”

Section: Resultsmentioning

confidence: 99%

Preparation of a GO/MIL-101(Fe) Composite for the Removal of Methyl Orange from Aqueous Solution

et al. 2021

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The composite material graphene oxide (GO)/MIL-101(Fe) was prepared by a simple one-pot reaction method. MIL-101(Fe) grown on the surface of a GO layer was confirmed by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The adsorption performance and the mechanism of MIL-101(Fe) and GO/MIL-101(Fe) for methyl orange (MO) were studied. The results have shown that the adsorption capacity of GO/MIL-101(Fe) for MO was significantly better than that of MIL-101(Fe), and its capacity was the highest when 10% GO was added. The Langmuir specific surface areas of MIL-101(Fe) and GO/MIL-101(Fe) were 1003.47 and 888.289 m2·g–1, respectively. The maximum adsorption capacities of MO on MIL-101 (Fe) and 10% GO/MIL-101 (Fe) were 117.74 and 186.20 mg·g–1, respectively. The adsorption isotherms were described by the Langmuir model, and the adsorption kinetic data suggested the pseudo-second order to be the best fit model. GO/MIL-101(Fe) can be reused at least three times.

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Section: Resultsmentioning

confidence: 99%

Preparation of a GO/MIL-101(Fe) Composite for the Removal of Methyl Orange from Aqueous Solution

et al. 2021

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“…An alternative approach was carried out by He et al that reports the preparation of a Ni-MOF/GO composite, which was highly sensitive towards organic pollutant p -chloronitrobenzene (PCNB). 67 From the differential pulse voltammetry method, the composite sensor was found to have a wide range limit of 0.10 μM–300.0 μM and limit of detection of 8.0 nM (S/N = 3). Ni-MOF/GO was prepared by an in situ single chemical precipitation method.…”

Section: Metal–organic Framework (Mofs) As a Remedial Tool For Enviro...mentioning

confidence: 99%

Recent advancements of metal–organic frameworks in sensing platforms: relevance in the welfare of the environment and the medical sciences with regard to cancer and SARS-CoV-2

et al. 2023

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“…Seemingly, incorporating MNPs such as AgNPs with MOFs could eliminate the defect of MOFs (the low active sites). [21,22] Due to excellent electrical conductivity, two-dimensional single-layer crystal lattice, high mechanical strength, large surface area, low cost, and simple fabrication routes, graphene serves as a platform for the MOFs' catalyst, [23,24] and electrochemical sensors. [25][26][27][28][29][30] Herein, to prevent agglomeration of graphene sheets and to improve the electrochemical sensors' performance, the rGO was functionalized with a polypyrrole (PPy) due to its environmental stability, high electrical conductivity, and facile preparation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of AgNPs functionalized CuMOF/PPy–rGO nanocomposite and its use as an electrochemical sensor for metronidazole determination

Saedi

Fat'hi

Zargar

2021

J Chinese Chemical Soc

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In this research, a simple and sensitive electrochemical technique based on using nanocomposite of (AgNP/CuMOF/PPy-rGO) modified carbon paste electrode for determination of metronidazole (MTZ) is described. Polypyrrole (PPy) hemispherical molecules coated reduced graphene oxide (PPy-rGO) was combined with CuMOF, a typical metal-organic framework, by hydrothermal method. AgNP/CuMOF/PPy-rGO was simply fabricated by creating AgNP inside and on the surface of the nanocomposite. The composition and morphology of the synthesized nanocomposite were investigated by SEM, FT-IR, EDX, and XRD. Cyclic voltammetry and ASSWV were utilized to determine the electrocatalytic activity of the sensor regarding the reduction of MTZ.Interestingly, some outstanding properties of the nanocomposite including high surface area of CuMOF, good conductivity of PPy-rGO, and the catalytic activity of AgNPs could result in the enhancement of the electron transfer rate, electrochemical behavior, and the reduction of peak currents at the surface of the proposed sensor. Sensitive, promising, and stable electrochemical sensor exhibited linear detection range of 0.08-160 μM at pH 5.0 with detection and limit of 24 nM (S/N = 3). The system was validated for precision with standard deviation less than 2.0%. Moreover, its feasibility was successfully assessed through analysis of tablet and human urine.

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Short rod-like Ni-MOF anchored on graphene oxide nanosheets: A promising voltammetric platform for highly sensitive determination of p-chloronitrobenzene

Cited by 35 publications

References 64 publications

Preparation of a GO/MIL-101(Fe) Composite for the Removal of Methyl Orange from Aqueous Solution

Preparation of a GO/MIL-101(Fe) Composite for the Removal of Methyl Orange from Aqueous Solution

Recent advancements of metal–organic frameworks in sensing platforms: relevance in the welfare of the environment and the medical sciences with regard to cancer and SARS-CoV-2

Synthesis of AgNPs functionalized CuMOF/PPy–rGO nanocomposite and its use as an electrochemical sensor for metronidazole determination

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