High performance determination of Pb2+ in water by 2,4-dithiobiuret-Reduced graphene oxide composite with wide linear range and low detection limit

Li, Ying; Cui, Rongli; Huang, Huan; Dong, Jinquan; Liu, Bing; Zhao, Dangui; Wang, Jiahao; Wang, Dan; Yuan, Hui; Guo, Xihong; Sun, Baoyun

doi:10.1016/j.aca.2020.05.036

Cited by 14 publications

(3 citation statements)

References 49 publications

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“…K is the numerical factor chosen on the basis of the confidence level desired. S 0 is the standard deviation 59 of the blank measurements ( n = 11, K = 3), while S is the slope of the calibration curve. Table S3 † list several peroxidase mimics for colorimetric detection of H 2 O 2 .…”

Section: Resultsmentioning

confidence: 99%

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

Tian

et al. 2021

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

Tian

et al. 2021

RSC Adv.

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“…As shown in Fig. 5 (A), the highest peak current occurred when the pH was 5, which was explained by the protonation of the amino group in UiO-66-NH 2 due to the too-low pH environment (Zou et al 2021), and the lead ions were combined with the hydroxide ion when the pH was too high (Li et al 2020).…”

Section: Electrochemical Behaviormentioning

confidence: 99%

A simple and sensitive electrochemical sensor based on amine-functionalized metal-organic framework and polypyrrole composite for detection of lead ion in meat

Wang

Hashim

et al. 2023

Preprint

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In this study an electrochemical device for lead ion based on an amine-functionalized Zr (IV) metal-organic framework (UiO-66-NH2) and polypyrrole (PPy) composite nanomaterials were prepared. The morphological characteristics and internal structural information of UiO-66-NH2@PPy composites were obtained through instruments such as scanning electron microscopy (SEM), high-resolution transmission electron microscope (TEM), multifunctional high-resolution X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectrometer (XPS), nitrogen adsorption/desorption analyzer, and thermogravimetric analyzer (TGA). The outstanding electrochemical performance of the electrochemical device prepared was attributed to the large specific surface area and abundant amino binding sites of UiO-66-NH2, and the excellent conductivity of PPy. Under optimal experiment conditions, the detection limit of the electrochemical device for lead ions is as low as 0.05 µg/L, with a good response in the linear range of 0.1–256 µg/L. Finally, we used this sensor to detect the content of lead ions in pig kidneys and compared it with standard methods. The results show that our sensor is simple, reliable and provides an alternative solution for the analysis of lead ions in meat.

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“…Thus many hybrid composites of GO/nanomaterials were synthesized and used for the electrochemical detection of heavy metal ions. Bi et al 17 assembled RGO with sulfur/nitrogen-"hooks" nanomaterials having a sensitivity of 20.48 μA mM −1 and a detection limit of 8.93 nM for Hg 2+ ; Li et al developed a novel chelating adsorbent, 2, 4-dithiobiuret-reduced graphene oxide composite (DTB-RGO) for the detection of Pb 2+ , 18 Huang et al synthesized an amino-reduced graphene oxide and β-cyclodextrin for the determination of Cu 2+ . 19 A porous polypyrrole/GO functionalized with carboxyl composite was developed for electrochemical sensing of trace Cd 2+ .…”

mentioning

confidence: 99%

Self-Assembled Co₃O₄/GO Composites for Excellent Electrochemical Detection of Heavy-Metal Ions

Hao

Zhang

Wang

et al. 2021

J. Electrochem. Soc.

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Recently, electrochemical sensors have been applied for the detection of heavy metal ions. The modifier on the electrochemical electrode is the key factor for enhanced performance. Modification by combining metal oxide nanomaterials with good adsorption property and graphene oxide (GO) with good conductivity can construct a useful sensing interface to detect heavy metal ions. Here, the effects of structures and morphologies of Co 3 O 4 /GO composite modifiers on the electrochemical detection performance were studied. The results show that Co 3 O 4 /GO composite with holey nano-sheets of pure Co 3 O 4 on lamella GO substrate had the best electrochemical performance for their large active sites and enhanced ion and charge transports. The limits of detection of the electrochemical sensors based on developed Co 3 O 4 /GO composite to Cd 2+ and Pb 2+ were calculated as 57 and 29.4 nM, respectively, which are lower than the guideline values recommended by the World Health Organization for drinking water. Furthermore, the designed sensor also showed excellent stability, selectivity, and acceptable reproducibility and reliablity. The results indicate that Co 3 O 4 /GO composite with holey layer structures as a promising electrode modifier could be potentially applied in the electrochemical detection of heavy metal ions on-site.

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High performance determination of Pb2+ in water by 2,4-dithiobiuret-Reduced graphene oxide composite with wide linear range and low detection limit

Cited by 14 publications

References 49 publications

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

A simple and sensitive electrochemical sensor based on amine-functionalized metal-organic framework and polypyrrole composite for detection of lead ion in meat

Self-Assembled Co₃O₄/GO Composites for Excellent Electrochemical Detection of Heavy-Metal Ions

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High performance determination of Pb2+ in water by 2,4-dithiobiuret-Reduced graphene oxide composite with wide linear range and low detection limit

Cited by 14 publications

References 49 publications

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H2O2 and glucose

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H2O2 and glucose

A simple and sensitive electrochemical sensor based on amine-functionalized metal-organic framework and polypyrrole composite for detection of lead ion in meat

Self-Assembled Co3O4/GO Composites for Excellent Electrochemical Detection of Heavy-Metal Ions

Contact Info

Product

Resources

About

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

A nano-sized Cu-MOF with high peroxidase-like activity and its potential application in colorimetric detection of H₂O₂ and glucose

Self-Assembled Co₃O₄/GO Composites for Excellent Electrochemical Detection of Heavy-Metal Ions