A voltammetric sensor for diazinon pesticide based on electrode modified with TiO2 nanoparticles covered multi walled carbon nanotube nanocomposite

Ghodsi, Javad; Rafati, Amir Abbas

doi:10.1016/j.jelechem.2017.11.003

Cited by 37 publications

(14 citation statements)

References 22 publications

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“…At the same time, CuO microspheres were employed for the detection of α-endosulfan using differential pulse voltammetry [ 79 ]. Very sensitive detection of diazinon, based on its direct reduction, enabling a LOD of 3 ×10 −3 μM is possible using multi-walled carbon nanotubes covered by TiO 2 nanoparticles [ 80 ]. In contrast, CuO-TiO 2 hybrid nanocomposites were used to detect methyl-parathion with differential pulse voltammetry [ 81 ].…”

Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

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Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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“…Under optimized extraction and analysis conditions, the proposed sensor exhibited excellent sensitivity (95.08 μA L μmol -1 ) for DZN with two linear ranges of 2.5 to 100 nmol L -1 (R 2 = 0.9971) and 0.1 to 2.0 mol L -1 (R 2 = 0.9832) and also a detection limit of 0.79 nmol L -1 . The sensor was successfully applied for the determination of DZN in well water and apple fruit samples with recovery values in the range of 92.53-100.86 % [115].…”

Section: Development Of Electrochemical Dzn Sensorsmentioning

confidence: 99%

Electrochemical strategies for detection of Diazinon: A review

Lohrasbi‐Nejad

2022

J. Electrochem. Sci. Eng.

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Diazinon or O,O-diethyl-O-(2-isopropyl-4-methyl-6-pyrimidinyl)-O,O-diethyl-O-(2- isopropyl-4-methyl-6-pyrimidinyl)- phosphorothioate, was first registered as an insecticide in the U.S. However, it was categorized in the limited group of pesticides due to high toxicity for birds, aquatic animals, and humans. Like other organophosphorus pesticides, this compound exhibits inhibitory effects on acetylcholinesterase enzyme. The inhibition of the enzyme leads to the accumulation of acetylcholine and causes the death of insects. DZN is considered a toxic compound for humans due to its high adsorption via skin and inhalation, which leads to the emergence of different symptoms of toxicity. When DZN is used for plants, the compound residues in crops enter the food chain, and hence, bring about different problems for human health. Moreover, the compound is easily washed by surface water and enters the groundwater. Its entrance into aquatic environments can negatively affect a wide range of non-targeted organisms. Thus, researchers are seeking to find fast and precise methods for the recognition of DZN. The electrochemical method for recognizing the compound in real samples is preferable to other analytical methods. Because this method can be used without spending time preparing the sample, it is simple, fast, and cost-effective. The present study is an overall review describing electrochemical-based methods for the recognition of DZN. Methods of modifying electrodes with CNT, polymers, biomolecules, and the simultaneous use of multiple methods are evaluated and compared. The influential factors contributing to the improvement of the signal response are also explained.

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“…This novel sensor was built by modification of a GCE with a nanocomposite containing acid-activated MWCNT (oxygen-functionalized nanostructures with very low R tc ) and fumed silica, which, when associated with DPV, attained a LOD of 0.8 nmol L −1 , confirming the sensitivity of the proposed method. Ghodsi and Rafati [53] reported a strategy to develop a voltammetric sensor for diazinon (an organophosphate insecticide) based on TiO 2 nanoparticles (TiO 2 -NP) and MWCNT nanocomposite assembled onto a GCE. Under optimum conditions, TiO 2 -NP@MWCNT/GCE reached a LOD of 3.0 nmol L −1 , using both CV and SWV, and this performance was explored for the electroanalysis of the pesticide in well and tap water.…”

Section: Overview Of Mwcnt Applications In Electrochemical Sensorsmentioning

confidence: 99%

New Generation of Electrochemical Sensors Based on Multi-Walled Carbon Nanotubes

Oliveira

Morais

2018

Applied Sciences

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Multi-walled carbon nanotubes (MWCNT) have provided unprecedented advances in the design of electrochemical sensors. They are composed by sp2 carbon units oriented as multiple concentric tubes of rolled-up graphene, and present remarkable active surface area, chemical inertness, high strength, and low charge-transfer resistance in both aqueous and non-aqueous solutions. MWCNT are very versatile and have been boosting the development of a new generation of electrochemical sensors with application in medicine, pharmacology, food industry, forensic chemistry, and environmental fields. This work highlights the most important synthesis methods and relevant electrochemical properties of MWCNT for the construction of electrochemical sensors, and the numerous configurations and successful applications of these devices. Thousands of studies have been attesting to the exceptional electroanalytical performance of these devices, but there are still questions in MWCNT electrochemistry that deserve more investigation, aiming to provide new outlooks and advances in this field. Additionally, MWCNT-based sensors should be further explored for real industrial applications including for on-line quality control.

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A voltammetric sensor for diazinon pesticide based on electrode modified with TiO2 nanoparticles covered multi walled carbon nanotube nanocomposite

Cited by 37 publications

References 22 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Electrochemical strategies for detection of Diazinon: A review

New Generation of Electrochemical Sensors Based on Multi-Walled Carbon Nanotubes

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