A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors' overall performance, especially concerning real-sample performance and the capability for actual field application.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:21

Enthalten in:

Sensors (Basel, Switzerland) - 21(2021), 12 vom: 16. Juni

Sprache:

Englisch

Beteiligte Personen:

Kanoun, Olfa [VerfasserIn]
Lazarević-Pašti, Tamara [VerfasserIn]
Pašti, Igor [VerfasserIn]
Nasraoui, Salem [VerfasserIn]
Talbi, Malak [VerfasserIn]
Brahem, Amina [VerfasserIn]
Adiraju, Anurag [VerfasserIn]
Sheremet, Evgeniya [VerfasserIn]
Rodriguez, Raul D [VerfasserIn]
Ben Ali, Mounir [VerfasserIn]
Al-Hamry, Ammar [VerfasserIn]

Links:

Volltext

Themen:

059QF0KO0R
Electrochemical sensor
Emergent contaminants
Impedance spectroscopy
In-situ applications
Inorganic compounds
Journal Article
Pesticides
Review
Square wave voltammetry
Water
Water contaminants

Anmerkungen:

Date Completed 06.07.2021

Date Revised 02.04.2024

published: Electronic

Citation Status MEDLINE

doi:

10.3390/s21124131

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM327553057