Ag nanoparticles-decorated nitrogen-fluorine co-doped monolayer MoS2 nanosheet for highly sensitive electrochemical sensing of organophosphorus pesticides

Song, Dandan; Wang, Yuanzhe; Li, Xiong; Gao, Yukun; Li, Yan; Gao, Faming

doi:10.1016/j.snb.2018.04.016

Cited by 103 publications

(45 citation statements)

References 51 publications

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“…[ 201 ] Through F doping, the basal planes of MoS 2 can be activated, and the N, F‐codoped 2D MoS 2 nanosheets exhibited a low HER onset overpotential of 110 mV and a small Tafel slope of 57 mV dec −1 for the HER. [ 202 ] In addition, Ag nanoparticle‐decorated N, F‐codoped fluorinated MoS 2 [ 203 ] and F‐doped MoS 2 /Al 2 O 3 [ 204 ] composites were used for the highly sensitive electrochemical sensing of organophosphate pesticides, and understanding the effects of the support Brønsted acidity on hydrodenitrogenation activity, respectively.…”

Section: Properties and Applications Of Halogenated 2d Materialsmentioning

confidence: 99%

Halogen Functionalization in the 2D Material Flatland: Strategies, Properties, and Applications

Tang

Fan

Zhang

2021

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Given the electronegativity and bonding environment of halogen elements, halogenation (i.e., fluorination, chlorination, bromination, and iodination) serves as a versatile strategy for chemical modifications of materials. The combination of halogens and 2D materials has triggered extensive interests since the first report on graphene fluorination in 2008. Subsequently, scholars consistently conduct pre‐, in‐process, or posthalogenation modifications of emerging 2D materials to achieve desired properties and broad device applications. They also continuously explore the role of halogens in 2D material functionalization. The multiple advantages introduced by halogen decoration make 2D materials outstanding from each subclass. In this review, an overall retrospect is provided on the research advances in the area of 2D material halogenation, including experimental halogenation strategies, halogen‐triggered novel physics and properties, and advanced applications across the studied objects. Future research directions in this area are also proposed.

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Section: Properties and Applications Of Halogenated 2d Materialsmentioning

confidence: 99%

Halogen Functionalization in the 2D Material Flatland: Strategies, Properties, and Applications

Tang

Fan

Zhang

2021

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“…The potential threats of increased concentration of OPPS to the environment have attracted significant attention, which has resulted in the development of sensitive and selective detection methods. OPPs are detected in real samples using various methods like gas chromatography with mass detection (GC/MS) (3,4), high performance liquid chromatography (HPLC) (5), electrochemical techniques (6,7), micellar electrokinetic chromatography (2), spectrophotometry (8,9), and spectrofluorimetry (10,11). OPPs are commonly found in real samples at low concentrations and complicated matrices.…”

Section: Introductionmentioning

confidence: 99%

Ultra Rapid and Highly Sensitive Disperser-less Liquid-liquid Microextraction of Organophosphate Pesticides Prior to Gas Chromatography with Mass Spectrometry Detection

Rahbar

Hesami

Ramezani

et al. 2020

Jundishapur J Health Sci

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Background: Organophosphates (OPPs) are toxic chemicals that can cause serious health problems through poisoning water and food. Objectives: A very simple and fast disperser-less liquid microextraction strategy before chromatographic detection was designed for the analysis of organophosphates in various water solutions. Methods: A 60 µL aliquot of chloroform, as extraction solvent (without using disperser), was introduced into the sample solution by rapid injection, and the sedimented organic phase was analyzed to assay some organophosphates. Results: Analytical characteristics, including limits of detection (0.0003 - 0.001 µg.L-1), linear dynamic ranges (0.001 - 100 µg.L-1), relative standard deviations (2.5 - 10), enrichment factors (up to 238), and extraction recoveries (84% - 108%), indicated the high efficacy of the developed method for analyzing the target analytes. Conclusions: The proposed procedure was effectively used for the analysis of the OPPs in real tap water, river water, and fruit juice samples. In the present study, the examined analytes were in the range of 0.07 - 1.56 µg.L-1.

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“…As a consequence, humans and the environment can be affected directly and indirectly, once soil, water, air, living beings and food are the targets of contamination by chemical pollutants. Among the pollutants, pesticides used in agriculture are considered hazardous chemicals if not properly used or managed [4][5][6]. Specifically, organophosphorus pesticides (OPs) are a group of organic pesticides that present high toxicity, and contribute with about 38% of the total pesticide used worldwide [7,8].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensor based on polyamide 6/polypyrrole electrospun nanofibers coated with reduced graphene oxide for malathion pesticide detection

Migliorini

Sanfelice

Mercante

et al. 2019

Mater. Res. Express

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An electrochemical sensor based on polymeric electrospun nanofibers of polyamide 6 (PA6)/ polypyrrole (PPy) surface-modified with two forms of graphene was developed for the detection of malathion, an organophosphorus pesticide. The materials were chosen considering the electrospun nanofibers possess large surface area and porosity, while reduced graphene oxide has remarkable electrical conductivity, which is a good strategy to increase sensor sensitivity and improve the limit of detection towards the pesticide. The surface modification of nanofibers with graphene was carried out using chemically (CRGO) and electrochemically reduced graphene oxide (ERGO), in order to demonstrate how the degree of reduction of graphene oxide can influence its electrical conductivity. The influence of the reduction on the conductivity properties of graphene-based films was studied through electrochemical techniques: cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The platform modified with CRGO, which presented higher electrical conductivity compared to ERGO, was used in the electrochemical detection of the pesticide malathion and exhibited a low detection limit of 0.8 ng ml −1 (S/N=3). The results indicate that chemically reduced graphene oxide is a potential alternative for modifying electrodes surfaces designed for sensing distinct pollutants of environmental or agricultural interest.

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Ag nanoparticles-decorated nitrogen-fluorine co-doped monolayer MoS2 nanosheet for highly sensitive electrochemical sensing of organophosphorus pesticides

Cited by 103 publications

References 51 publications

Halogen Functionalization in the 2D Material Flatland: Strategies, Properties, and Applications

Halogen Functionalization in the 2D Material Flatland: Strategies, Properties, and Applications

Ultra Rapid and Highly Sensitive Disperser-less Liquid-liquid Microextraction of Organophosphate Pesticides Prior to Gas Chromatography with Mass Spectrometry Detection

Electrochemical sensor based on polyamide 6/polypyrrole electrospun nanofibers coated with reduced graphene oxide for malathion pesticide detection

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