Anthracene modified graphene oxide-silica as an optical sensor for selective detection of Cu<sup>2+</sup> and I<sup>−</sup> ions

Nazerdeylami, Samaneh; Ghasemi, Jahan B.; Badiei, Alireza

doi:10.1080/03067319.2019.1638919

Cited by 8 publications

(2 citation statements)

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“…Since graphene enables the detection of single molecules accommodated on its surface [59], it attracts a lot of attention as a highly sensitive and biofriendly material for environmental sensorics [60], including the fast and real-time detection of Copper ions [61]. Two strategies in such a direction have been implemented so far: (i) electrochemical sensing by electrodes covered with functionalized graphene-based materials (reduced graphene oxide, graphene oxide, graphene quantum dots) [62][63][64][65] and (ii) optical sensing using colorimetric and fluorescent probes based on graphene derivatives [66][67][68][69][70][71][72][73][74]. Both approaches present some limitations, mainly linked to the instability and complicated preparation procedure of the working electrode or fluorescence probe, which typically involves surface functionalization and multistage chemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Copper on Epitaxial Graphene

2020

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Understanding the mechanism of metal electrodeposition on graphene as the simplest building block of all graphitic materials is important for electrocatalysis and the creation of metal contacts in electronics. The present work investigates copper electrodeposition onto epitaxial graphene on 4H-SiC by experimental and computational techniques. The two subsequent single-electron transfer steps were coherently quantified by electrochemistry and density functional theory (DFT). The kinetic measurements revealed the instantaneous nucleation mechanism of copper (Cu) electrodeposition, controlled by the convergent diffusion of reactant to the limited number of nucleation sites. Cu can freely migrate across the electrode surface. These findings provide fundamental insights into the nature of copper reduction and nucleation mechanisms and can be used as a starting point for performing more sophisticated investigations and developing real applications.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Copper on Epitaxial Graphene

2020

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“…Therefore, the facile detection of cadmium (II) ions and tetracycline is a significant challenge in science. Several conventional techniques such as chromatography, capillary electrophoresis, electrochemistry, and spectroscopy have been used for monitoring of cadmium (II) ions and tetracycline [7][8][9][10][11]. Their significant drawbacks are that these types of tools are expensive, time-consuming, and do not have enough sensitivity and selectivity [12,13].…”

Section: Introductionmentioning

confidence: 99%

Fluorescence turn off-on probe (β-cyclodextrin-hydroxyquinoline) for monitoring of Cd²⁺ ions and tetracycline

Nazerdeylami

Ghasemi

Amiri

et al. 2020

Methods Appl. Fluoresc.

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In this paper, a photoluminescent turn off-on switch probe β-cyclodextrin-hydroxyquinoline (β-CD-HQ) was efficiently applied for detection and measurement of Cd2+ ions and detection of tetracycline. The proposed assay has shown an excellent selective fluorescence response toward Cd2+ ions over other ions like Al3+, Pb2+, Zn2+, Co2+, K+, Na+ and Sr2+. The fluorescence emission intensity of the probe is slightly affected by competing ions. In optimum pH value, 4, the limit of detection and linear concentration range were 0.05 nM and 0.1–1.5 nM, respectively. Additionally, the extraordinary output signal of β-CD-HQ was utilized to investigate the logic behavior of β-CD-HQ in the aqueous media. Accordingly, a solid support logic circuit was made by producing the fluorescence output signal under the stimulation of Cd2+ ions and tetracycline as inputs.

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A New Sensitive Fluorescence Sensor and Photocatalyst for Determination and Degradation of Sodium Valproate Using g-C3N4@Fe3O4@CuWO4 Nanocomposite and FCCD Optimization

2023

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Anthracene modified graphene oxide-silica as an optical sensor for selective detection of Cu²⁺ and I⁻ ions

Cited by 8 publications

References 42 publications

Electrochemical Deposition of Copper on Epitaxial Graphene

Electrochemical Deposition of Copper on Epitaxial Graphene

Fluorescence turn off-on probe (β-cyclodextrin-hydroxyquinoline) for monitoring of Cd²⁺ ions and tetracycline

A New Sensitive Fluorescence Sensor and Photocatalyst for Determination and Degradation of Sodium Valproate Using g-C3N4@Fe3O4@CuWO4 Nanocomposite and FCCD Optimization

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Anthracene modified graphene oxide-silica as an optical sensor for selective detection of Cu2+ and I− ions

Cited by 8 publications

References 42 publications

Electrochemical Deposition of Copper on Epitaxial Graphene

Electrochemical Deposition of Copper on Epitaxial Graphene

Fluorescence turn off-on probe (β-cyclodextrin-hydroxyquinoline) for monitoring of Cd2+ ions and tetracycline

A New Sensitive Fluorescence Sensor and Photocatalyst for Determination and Degradation of Sodium Valproate Using g-C3N4@Fe3O4@CuWO4 Nanocomposite and FCCD Optimization

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Product

Resources

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Anthracene modified graphene oxide-silica as an optical sensor for selective detection of Cu²⁺ and I⁻ ions

Fluorescence turn off-on probe (β-cyclodextrin-hydroxyquinoline) for monitoring of Cd²⁺ ions and tetracycline