Nanomaterials for electrochemical detection of pollutants in water: A review

The survival of living beings, including humanity, depends on a continuous supply of clean water. However, due to the development of industry, agriculture, and population growth, an increasing number of wastewaters is discarded, and the negative effects of such actions are clear. The first step in s...

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Published in:Electrophoresis Vol. 43; no. 1-2; pp. 249 - 262
Main Authors: Potes‐Lesoinne, Humberto Andre, Ramirez‐Alvarez, Fernando, Perez‐Gonzalez, Victor H., Martinez‐Chapa, Sergio O., Gallo‐Villanueva, Roberto Carlos
Format: Journal Article
Language:English
Published: Germany Wiley Subscription Services, Inc 01.01.2022
John Wiley and Sons Inc
Subjects:
Agricultural wastes
carbon
chemical species
Contaminants
Electrochemical analysis
Electrochemical Techniques
Electrochemistry
Electrodes
electrophoresis
Environmental Pollutants - analysis
Glassy carbon
Heavy metals
Industrial development
industry
Metals, Heavy - analysis
Miniaturization
Nanomaterials
Nanostructures - chemistry
Nutrients
Organic matter
Phenols
Pollutants
Pollution monitoring
Population growth
Review
Sensors
Wastewater
Water
Electrodes
Water
Electrochemistry
Sensors
Pollutants
ISSN:0173-0835, 1522-2683, 1522-2683
Online Access:Get full text
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Summary:The survival of living beings, including humanity, depends on a continuous supply of clean water. However, due to the development of industry, agriculture, and population growth, an increasing number of wastewaters is discarded, and the negative effects of such actions are clear. The first step in solving this situation is the collection and monitoring of pollutants in water bodies to subsequently facilitate their treatment. Nonetheless, traditional sensing techniques are typically laboratory‐based, leading to potential diminishment in analysis quality. In this paper, the most recent developments in micro‐ and nano‐electrochemical devices for pollutant detection in wastewater are reviewed. The devices reviewed are based on a variety of electrodes and the sensing of three different categories of pollutants: nutrients and phenolic compounds, heavy metals, and organic matter. From these electrodes, Cu, Co, and Bi showed promise as versatile materials to detect a grand variety of contaminants. Also, the most commonly used material is glassy carbon, present in the detection of all reviewed analytes.
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ISSN:0173-0835
1522-2683
1522-2683
DOI:10.1002/elps.202100204