Fabrication of a bi-metallic metal organic framework nanocomposite for selective and sensitive detection of triclosan

Lokesh, S.; Tetala, Kali Kishore Reddy

doi:10.1039/d3ay00033h

Cited by 6 publications

(1 citation statement)

References 64 publications

(79 reference statements)

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“…cf-MWCNT can be immobilized on the working electrode onto which molecularly imprinted composite can be electrodeposited. There are several reports where CNT based composites were used as active material for the detection of triclosan only by direct method [77][78][79][80][81][82] where triclosan is detected directly from the electrolyte containing triclosan of unknown concentration. CNT based composites was never used for the detection of triclosan by indirect method where the functionalised working electrode was incubated in triclosan containing solution so that triclosan ions from the solution get adsorbed at the surface, and detected using a standard solution as electrolyte such as [Fe(CN) 6 ] 3−/4− in KCl.…”

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confidence: 99%

An o-Phenylenediamine and MWCNT-Based Electrochemical Sensor for the Detection of Triclosan by Cyclic Voltammetry

Dutta,

Pushpavanam

2024

J. Electrochem. Soc.

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Selectivity and sensitivity are the two key parameters for construction of a sensor. In this work, a novel electrochemical sensor based on molecularly-imprinted composites synthesized from o-phenylenediamine (o-PD) and multiwalled carbon nanotube (MWCNT) to detect triclosan is reported. Two different sensors were developed MIC/GC and MIC/cf-MWCNT/GC. To fabricate MIC/GC, molecularly imprinted composite (MIC) was synthesized by cyclic voltammetry using o-PD, COOH-functionalized MWCNT (cf-MWCNT) and triclosan on glassy carbon (GC) electrode, following removal of surface triclosan. MIC/cf-MWCNT/GC was fabricated by synthesizing MIC on cf-MWCNT coated GC. Template removal was performed using NaOH solution. MIC/GC could detect triclosan till 40 ppb while using MIC/cf-MWCNT/GC, 10 ppb of limit of detection (LOD) was achieved. Adsorption isotherms were constructed for both the films. Langmuir adsorption isotherm gave the best fit for MIC/cf-MWCNT/GC with -ΔGads value of 54.952 kJ/mol indicating stronger chemisorption. To understand the role of cf-MWCNT in detection of triclosan, electrochemical band gap studies, electrochemical impedance spectroscopy, and cyclic voltammetry studies were conducted. Both sensors were found to be efficient for detection of triclosan in the presence of interfering ions.

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confidence: 99%

An o-Phenylenediamine and MWCNT-Based Electrochemical Sensor for the Detection of Triclosan by Cyclic Voltammetry

Dutta,

Pushpavanam

2024

J. Electrochem. Soc.

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Copper-zinc nanoparticle-decorated nitrogen-doped carbon composite for electrochemical determination of triclosan

Zhou,

Li,

et al. 2024

Microchim Acta

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In-situ neodymium ion doping into perovskite nanocrystals over ex-situ and its importance in triclosan sensing

Dongre

Shwetharani

Moyez

et al. 2023

Materials Chemistry and Physics

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Fabrication of a bi-metallic metal organic framework nanocomposite for selective and sensitive detection of triclosan

Abstract: Transition metal-ions based nanocomposites are widely used for their ease of synthesis and cost-effectiveness in sensor development. In this study, we have synthesized bi-metallic (iron and zinc) metal organic framework...

Cited by 6 publications

References 64 publications

An o-Phenylenediamine and MWCNT-Based Electrochemical Sensor for the Detection of Triclosan by Cyclic Voltammetry

An o-Phenylenediamine and MWCNT-Based Electrochemical Sensor for the Detection of Triclosan by Cyclic Voltammetry

Copper-zinc nanoparticle-decorated nitrogen-doped carbon composite for electrochemical determination of triclosan

In-situ neodymium ion doping into perovskite nanocrystals over ex-situ and its importance in triclosan sensing

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