Quantitative removal of Hg(II) as Hg(0) using carbon cloths coated graphene quantum dots and their silver nanoparticles composite and application of Hg(0) for the sensitive determination of nitrobenzene

Kappen, Jincymol; Aravind, M.; Varalakshmi, P.; Ashokkumar, Balasubramaniem; John, S. Abraham

doi:10.1016/j.colsurfa.2022.128542

Cited by 6 publications

(2 citation statements)

References 42 publications

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“…However, the importance of this sensor lies in its dual role, as it is also suitable for photocatalytic degradation of dye Eosin-Y. The development of a sustainable method to remediate Hg(II) as Hg(0) using graphene quantum dots coated carbon cloth (CC/GQDs) and utilization of Hg(0) and AgNPs/CC/GQDs composite as a sensitive electrochemical sensor for nitrobenzene was reported [ 173 ]. This sensing platform not only reduced the overpotential for analyte reduction by more than 100 mV, but also exhibited a 4-fold increase in the oxidation current compared to the bare electrode.…”

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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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: 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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“…Carbon dots are single-layer or multilayer graphite structures or polymer aggregate carbon particles with a diameter less than 10 nm. Carbon dots have been acknowledged as discrete, quasispherical, fluorescent carbon particles, most of which are sp 2 or sp 3 hybrid carbon structures [ 104 ]. According to their structure and composition characteristics, carbon dots could be divided into graphene quantum dots (GQDs), carbon quantum dots (CQDs), and carbonized polymer dots (CPDs).…”

Section: Development Of Carbon Nanomaterialsmentioning

confidence: 99%

Recent Advances in the Synthesis, Characterization, and Application of Carbon Nanomaterials for the Removal of Endocrine-Disrupting Chemicals: A Review

Liao

Yang

Zhou

et al. 2022

IJMS

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The large-scale production and frequent use of endocrine-disrupting chemicals (EDCs) have led to the continuous release and wide distribution of these pollutions in the natural environment. At low levels, EDC exposure may cause metabolic disorders, sexual development, and reproductive disorders in aquatic animals and humans. Adsorption treatment, particularly using nanocomposites, may represent a promising and sustainable method for EDC removal from wastewater. EDCs could be effectively removed from wastewater using various carbon-based nanomaterials, such as carbon nanofiber, carbon nanotubes, graphene, magnetic carbon nanomaterials, carbon membranes, carbon dots, carbon sponges, etc. Important applications of carbon nanocomposites for the removal of different kinds of EDCs and the theory of adsorption are discussed, as well as recent advances in carbon nanocomposite synthesis technology and characterization technology. Furthermore, the factors affecting the use of carbon nanocomposites and comparisons with other adsorbents for EDC removal are reviewed. This review is significant because it helps to promote the development of nanocomposites for the decontamination of wastewater.

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Zero-, one- and two-dimensional carbon nanomaterials as low-cost catalysts in optical and electrochemical sensing of biomolecules and environmental pollutants

Gowthaman,

Amalraj,

Kesavan

et al. 2023

Microchemical Journal

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Quantitative removal of Hg(II) as Hg(0) using carbon cloths coated graphene quantum dots and their silver nanoparticles composite and application of Hg(0) for the sensitive determination of nitrobenzene

Cited by 6 publications

References 42 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 Synthesis, Characterization, and Application of Carbon Nanomaterials for the Removal of Endocrine-Disrupting Chemicals: A Review

Zero-, one- and two-dimensional carbon nanomaterials as low-cost catalysts in optical and electrochemical sensing of biomolecules and environmental pollutants

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