Simultaneous electro-determination of trace copper, lead, and cadmium in tap water by using silver nanoparticles and graphene nanoplates as nanocomposite modified graphite electrode

Nourbakhsh, Ali; Rahimnejad, Mostafa; Asghary, Maryam; Younesi, Habibollah

doi:10.1016/j.microc.2021.107137

Cited by 25 publications

(8 citation statements)

References 50 publications

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“…Electrodeposition can be performed by immersing the electrode substrate (disc or 3D electrodes) into the silver salt solution [ 75 ]. In addition, electrodeposition can be carried out from various background electrolytes such as acetic acid(AcOH)/NH 3 buffer [ 76 ], H 2 SO 4 [ 77 ], HNO 3 [ 78 ], KNO 3 [ 79 ] and phosphate buffer solution (PBS) [ 80 ]. For two-dimensional sensors (screen-printed carbon electrodes, inkjet-printed electrodes, doped rigid glass substrates), electrodeposition can also be done by drop casting the Ag(I) solution on the surface of the working electrode and applying a CV in a given timeframe [ 81 ].…”

Section: General Methods For the Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

“…The nanoprobe was tested in tap water samples spiked with a certain amount of HMs, and recoveries between 103.0% and 108.0% were achieved. The combination of high electrical conductivity and high area-to-volume ratio of graphene nanoplates (GrNPs) and excellent catalytic activity of AgNPs was used to fabricate an electrochemical platform for simultaneous voltammetric detection of divalent Cd, Cu, and Pb in tap water [ 78 ]. AgNPs/GrNPs were deposited on the graphite electrode (GE), and the electrochemical behavior of the AgNPs/GrNPs/GE sensor was preliminarily characterized by CV technique using the 5.0 mM [Fe(CN) 6 ] 3–/4– redox probe (1:1) in a 0.1 M KCl primary electrolyte solution.…”

Section: Application Of Silver Nanoparticles In Voltammetric and Ampe...mentioning

confidence: 99%

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The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Ivanišević

2023

Sensors

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With rapidly increasing environmental pollution, there is an urgent need for the development of fast, low-cost, and effective sensing devices for the detection of various organic and inorganic substances. Silver nanoparticles (AgNPs) are well known for their superior optoelectronic and physicochemical properties, and have, therefore, attracted a great deal of interest in the sensor arena. The introduction of AgNPs onto the surface of two-dimensional (2D) structures, incorporation into conductive polymers, or within three-dimensional (3D) nanohybrid architectures is a common strategy to fabricate novel platforms with improved chemical and physical properties for analyte sensing. In the first section of this review, the main wet chemical reduction approaches for the successful synthesis of functional AgNPs for electrochemical sensing applications are discussed. Then, a brief section on the sensing principles of voltammetric and amperometric sensors is given. The current utilization of silver nanoparticles and silver-based composite nanomaterials for the fabrication of voltammetric and amperometric sensors as novel platforms for the detection of environmental pollutants in water matrices is summarized. Finally, the current challenges and future directions for the nanosilver-based electrochemical sensing of environmental pollutants are outlined.

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Section: General Methods For the Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Section: Application Of Silver Nanoparticles In Voltammetric and Ampe...mentioning

confidence: 99%

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Ivanišević

2023

Sensors

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“…Five main types of NMs, i.e. , graphene, graphene oxide (GO) and reduced graphene oxide (rGO), 22–92 NPs, 23–25,27,31,56,57,59,64,67,70,83,86,87,93–138 single and multiwalled carbon nanotubes (SWCNTs and MWCNTs), 32,83,89,98,99,101,113,129,133,139–162 nanosheets, 34,85,107,111,139,162–166 and nanofibers, 167–169 have been employed in the modification of the electrodes used in the determination of heavy metals. Nanocubes, nanoflakes, nanospheres, and nanodiamonds 75,170–175 are among the other types of NMs used in the modification of the electrodes.…”

Section: Nanomaterials As Electrode Modifiersmentioning

confidence: 99%

Recent advances in the modification of electrodes for trace metal analysis: a review

Xhanari,

Finšgar

2023

Analyst

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“…Rapid industrial development and urbanization have brought about worldwide environmental pollution, including the almost ubiquitous contamination of heavy metal ions (HMIs), which are non-biodegradable and carry the risk of entering the human body through the food chain and poses a significant threat to human health when released into open areas [ 1 , 2 ]. The hazard extent of HMIs is closely related to their type, form, exposure time and dose, so their maximum allowable concentration in the environment is also different.…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review

Sun

Zhang

et al. 2022

Biosensors

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Heavy metal ions (HMIs) pose a serious threat to the environment and human body because they are toxic and non-biodegradable and widely exist in environmental ecosystems. It is necessary to develop a rapid, sensitive and convenient method for HMIs detection to provide a strong guarantee for ecology and human health. Ion-imprinted electrochemical sensors (IIECSs) based on nanomaterials have been regarded as an excellent technology because of the good selectivity, the advantages of fast detection speed, low cost, and portability. Electrode surfaces modified with nanomaterials can obtain excellent nano-effects, such as size effect, macroscopic quantum tunneling effect and surface effect, which greatly improve its surface area and conductivity, so as to improve the detection sensitivity and reduce the detection limit of the sensor. Hence, the present review focused on the fundamentals and the synthetic strategies of ion-imprinted polymers (IIPs) and IIECSs for HMIs detection, as well as the applications of various nanomaterials as modifiers and sensitizers in the construction of HMIIECSs and the influence on the sensing performance of the fabricated sensors. Finally, the potential challenges and outlook on the future development of the HMIIECSs technology were also highlighted. By means of the points presented in this review, we hope to provide some help in further developing the preparation methods of high-performance HMIIECSs and expanding their potential applications.

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Simultaneous electro-determination of trace copper, lead, and cadmium in tap water by using silver nanoparticles and graphene nanoplates as nanocomposite modified graphite electrode

Cited by 25 publications

References 50 publications

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Recent advances in the modification of electrodes for trace metal analysis: a review

Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review

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