Electrochemical bio-sensor for degradation of phenol in the environment

Maallah, R; Moutcine, Abdelaziz; Laghlimi, Charaf; Smaini, Mohamed Amine; Chtaini, Abdelilah

doi:10.1016/j.sbsr.2019.100279

Cited by 15 publications

(6 citation statements)

References 9 publications

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“…Their toxicity affects a large number of organs such as the genitourinary system, the lungs, the liver, as well as kidneys. Among these phenolic compounds, phenol is the most toxic and classified as a priority pollutant 25 . Phenol exposure can cause movement problems that may include tremors, loss of coordination, muscle weakness and even paralysis.…”

Section: Introductionmentioning

confidence: 99%

Nanoengineering of eco-friendly silver nanoparticles using five different plant extracts and development of cost-effective phenol nanosensor

Jebril

Fdhila

Dridi

2021

Sci Rep

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The production of environmentally friendly silver nanoparticles (AgNPs) has aroused the interest of the scientific community due to their wide applications mainly in the field of environmental pollution detection and water quality monitoring. Here, for the first time, five plant leaf extracts were used for the synthesis of AgNPs such as Basil, Geranium, Eucalyptus, Melia, and Ruta by a simple and eco-friendly method. Stable AgNPs were obtained by adding a silver nitrate (AgNO3) solution with the leaves extract as reducers, stabilizers and cappers. Only, within ten minutes of reaction, the yellow mixture changed to brown due to the reduction of Ag+ ions to Ag atoms. The optical, structural, and morphology characteristics of synthesized AgNPs were determined using a full technique like UV–visible spectroscopy, FTIR spectrum, XRD, EDX spectroscopy, and the SEM. Thus, Melia azedarach was found to exhibit smaller nanoparticles (AgNPs-M), which would be interesting for electrochemical application. So, a highly sensitive electrochemical sensor based on AgNPs-M modified GCE for phenol determination in water samples was developed, indicating that the AgNPs-M displayed good electrocatalytic activity. The developed sensor showed good sensing performances: a high sensitivity, a low LOD of 0.42 µM and good stability with a lifetime of about one month, as well as a good selectivity towards BPA and CC (with a deviation less than 10%) especially for nanoplastics analysis in the water contained in plastics bottles. The obtained results are repeatable and reproducible with RSDs of 5.49% and 3.18% respectively. Besides, our developed sensor was successfully applied for the determination of phenol in tap and mineral water samples. The proposed new approach is highly recommended to develop a simple, cost effective, ecofriendly, and highly sensitive sensor for the electrochemical detection of phenol which can further broaden the applications of green silver NPs.

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Section: Introductionmentioning

confidence: 99%

Nanoengineering of eco-friendly silver nanoparticles using five different plant extracts and development of cost-effective phenol nanosensor

Jebril

Fdhila

Dridi

2021

Sci Rep

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“…we see the disappearance of defects, the surface is homogeneous, and the organic film adheres to the entire surface of the electrode. The appearance of a very dense bacterial population in the case of an optimized surface, with a predominantly oval shape of particle size with a very important coverage rate of the surface occupied by the bacteria (fig13) [12]. 5, and measured at places in the sample where the film was homogeneous without aggregates too large, varies significantly [9] (Table 4).…”

Section: Influence Of Phenol Concentrationmentioning

confidence: 99%

New Electrode Based on Polymer Bacteria Modified Aluminum for Degradation of Phenol

Maallah¹

2021

Preprint

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The aims of this work were to examine the new electrode, based on polymer bacteria modified aluminum electrode for simultaneous production of electricity and degradation of phenol. This electrode is based aluminum modified by bacteria inserted in the polymer matrix, developed in situ on the surface. This electrode, designated subsequently by bacteria-polymer-aluminum, Showed stable response and was characterized with voltametric methods, as cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The experimental results revealed that the prepared electrode could be a feasible for degradation of hazardous phenol pollutants. The sensor was successfully applied to the determination of phenol in a real sample with satisfactory results.

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“…All electrode potentials have been referred to the reference electrode. The carbon paste electrode modified by Nickel (Ni-CPE), were used as the working Electrode (ET) [10,11].…”

Section: Apparatusmentioning

confidence: 99%

Nickel-Modified Carbon Paste Electrode for the Methanol Fuel Cell

Maallah

2021

SBB

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This work aims to study the electro-oxidation of methanol, in an alkaline solution at a nickelmodified carbon paste electrode Ni -CPE, by cyclic voltammetry, impedance measurements and chronoemperometry. X-ray carried out morphological characterizations by and Microscopy Electronic Transmission (MET). Ni has been found to have a better catalytic activity for methanol oxidation; they are simple, less expensive and stable.

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Electrochemical bio-sensor for degradation of phenol in the environment

Cited by 15 publications

References 9 publications

Nanoengineering of eco-friendly silver nanoparticles using five different plant extracts and development of cost-effective phenol nanosensor

Nanoengineering of eco-friendly silver nanoparticles using five different plant extracts and development of cost-effective phenol nanosensor

New Electrode Based on Polymer Bacteria Modified Aluminum for Degradation of Phenol

Nickel-Modified Carbon Paste Electrode for the Methanol Fuel Cell

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