Subsurface H2S Detection by a Surface Acoustic Wave Passive Wireless Sensor Interrogated with a Ground Penetrating Radar

Subsurface H2S Detection by a Surface Acoustic Wave Passive Wireless Sensor Interrogated with a Ground Penetrating Radar

Long-term monitoring of organic pollutants in the soil is a major environmental challenge. We propose to meet this issue by the development of a polymer dedicated to selectively react with H2S, coating surface acoustic wave transducers designed as passive cooperative targets with the compound, and p...

Full description

Saved in:
Bibliographic Details
Published in:ACS sensors Vol. 5; no. 4; pp. 1075 - 1081
Main Authors: Rabus, David, Friedt, Jean-Michel, Arapan, Lilia, Lamare, Simon, Baqué, Marc, Audouin, Grégoire, Chérioux, Frédéric
Format: Journal Article
Language:English
Published: American Chemical Society 24-04-2020
Subjects:
functional polymer
ground penetrating RADAR
hydrogen sulfide
surface acoustic waves
wireless measurement
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Long-term monitoring of organic pollutants in the soil is a major environmental challenge. We propose to meet this issue by the development of a polymer dedicated to selectively react with H2S, coating surface acoustic wave transducers designed as passive cooperative targets with the compound, and probing their response using Ground Penetrating RADAR, thus providing the capability to monitor the presence of H2S in the subsurface environment. The selectivity is brought by including lead­(II) cation in a reticulated polymer matrix which can be deposited as a thin layer on a surface acoustic wave sensor. We demonstrate a signal enhancement mechanism in which water absorption magnifies the signal detection, making the sensor most sensitive to H2S in an underground environment saturated with moisture.
ISSN:2379-3694
2379-3694
DOI:10.1021/acssensors.0c00013