Sensing membranes based on CNT nanocomposites processing for air and water monitoring

Craciun, Cristina; Filipescu, M.; Palla-Papavlu, Alexandra; Brajnicov, Simona; Tozar, Tatiana; Scheaua, Fanel; Bonciu, Anca; Nedelcut, Florin; Dinescu, M.

doi:10.1109/metrosea52177.2021.9611564

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…In this work, the CNT-Chit-FePc mixture was suspended in water (at different concentrations, see Table 1 ) and flash frozen using liquid nitrogen, resulting a solid target. The choice of the different concentrations used in this work was based on our preliminary study reported in [ 26 ], where we proved the possibility to process new composites based on (CNT (2%), chitosan (0.5%), and C 32 H 16 FeN 8 (0.4%) without structural modifications. Chitosan was used as a matrix for the entrapment of the composite based on CNT and C 32 H 16 FeN 8 and allowed for a uniform and controllable distribution of the compounds in the coating.…”

Section: Methodsmentioning

confidence: 99%

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

et al. 2022

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This work is focused on the application of a laser-based technique, i.e., matrix-assisted pulsed laser evaporation (MAPLE) for the development of electrochemical sensors aimed at the detection of nitrites in water. Commercial carbon-based screen-printed electrodes were modified by MAPLE via the application of a newly developed composite coating with different concentrations of carbon nanotubes (CNTs), chitosan, and iron (II) phthalocyanine (C32H16FeN8). The performance of the newly fabricated composite coatings was evaluated both by investigating the morphology and surface chemistry of the coating, and by determining the electro-catalytic oxidation properties of nitrite with bare and modified commercial carbon-based screen-printed electrode. It was found that the combined effect of CNTs with chitosan and C32H16FeN8 significantly improves the electrochemical response towards the oxidation of nitrite. In addition, the MAPLE modified screen-printed electrodes have a limit of detection of 0.12 µM, which make them extremely useful for the detection of nitrite traces.

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Section: Methodsmentioning

confidence: 99%

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

et al. 2022

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“…An aerial monitoring platform equipped with sensors for detection of specific contaminants, named AWISEM (Air-Water Innovative System for Environmental Monitoring) was aimed to be a mobile aerial and aquatic vehicle that should contain: A) an aerial and aquatic mobile monitoring platform, with an innovative sustentation system, having the capability to fly and also to float in an aquatic environment; B) two distinct sets of sensors, based on CNT (carbon nanotube-polymer) composites with high sensitivity for the monitoring of either aerial or aquatic contaminants. The sensing membranes (thin layers) for two types of sensors are able to detect contaminants such as ammonia -in air and nitritesin water [16].…”

Section: Table 2 the Points Values Of Eca And The Ec1:5 Measured By H...mentioning

confidence: 99%

Considerations on Current State of Sensors Attached to Drones Applications in Environmental Quality Monitoring

Şerban

Leopa

2022

Ann_UGAL_MMS

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Environmental pollution can be detected by installing special devices on the drone, called sensors, which will collect data on air, water, and soil quality. The topic of using drones with sensors is currently known and is applied in various fields such as agriculture, meteorology, hydrology, marine and oceanographic prospecting, gas leak inspection, environmental monitoring, etc. Air, water, and soil sensors and collectors attached to drones are used to detect and collect contaminants. The remote sensing method uses multispectral optical and thermal sensors for modelling and mapping applications.

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Sensing membranes based on CNT nanocomposites processing for air and water monitoring

Cited by 2 publications

References 20 publications

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

Considerations on Current State of Sensors Attached to Drones Applications in Environmental Quality Monitoring

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