A Quartz Crystal Resonator Modified with a Metal-Organic Framework for Sensing of Benzene, Ethylbenzene, Toluene and Xylenes in Water

Jaskaran Singh Malhotra; Per Holger Reichert; Jonas Sundberg

doi:10.1109/SENSORS56945.2023.10325196

A Quartz Crystal Resonator Modified with a Metal-Organic Framework for Sensing of Benzene, Ethylbenzene, Toluene and Xylenes in Water

Jaskaran Singh Malhotra^*, Per Holger Reichert, Jonas Sundberg

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

This work describes the use of a quartz crystal microbalance (QCM) based sensor for gravimetric sensing of benzene, toluene, ethylbenzene, and xylenes (BTEX). A film of a Cu-based metal-organic framework (MOF) capable of BTEX adsorption is deposited on the gold electrode of a quartz resonator (10 MHz). The sensor is operated under constant flow of water, simultaneously measuring frequency shifts in multiple harmonics. Introduction of BTEX compounds in the water shifts the frequency, enabling detection. Analysis of deviation in the 3^rd and 5^th harmonics enables discrimination of response from either of the BTEX molecules. The response time further enables understanding of diffusion kinetics of each molecule into the framework.

Original language	English
Title of host publication	Proceedings of 2023 IEEE SENSORS
Number of pages	4
Publisher	IEEE
Publication date	2023
ISBN (Electronic)	979-8-3503-0387-2
DOIs	https://doi.org/10.1109/SENSORS56945.2023.10325196
Publication status	Published - 2023
Event	2023 IEEE SENSORS: The 22nd IEEE Conference on Sensors - Vienna, Austria Duration: 29 Oct 2023 → 1 Nov 2023 Conference number: 22

Conference

Conference	2023 IEEE SENSORS
Number	22
Country/Territory	Austria
City	Vienna
Period	29/10/2023 → 01/11/2023

Series	I E E E Sensors. Proceedings
ISSN	1930-0395

Keywords

QCM
BTEX sensor
Analyte discrimination
Metal-organic frameworks
Multiple harmonics

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10.1109/SENSORS56945.2023.10325196

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title = "A Quartz Crystal Resonator Modified with a Metal-Organic Framework for Sensing of Benzene, Ethylbenzene, Toluene and Xylenes in Water",

abstract = "This work describes the use of a quartz crystal microbalance (QCM) based sensor for gravimetric sensing of benzene, toluene, ethylbenzene, and xylenes (BTEX). A film of a Cu-based metal-organic framework (MOF) capable of BTEX adsorption is deposited on the gold electrode of a quartz resonator (10 MHz). The sensor is operated under constant flow of water, simultaneously measuring frequency shifts in multiple harmonics. Introduction of BTEX compounds in the water shifts the frequency, enabling detection. Analysis of deviation in the 3rd and 5th harmonics enables discrimination of response from either of the BTEX molecules. The response time further enables understanding of diffusion kinetics of each molecule into the framework.",

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author = "Malhotra, {Jaskaran Singh} and Reichert, {Per Holger} and Jonas Sundberg",

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doi = "10.1109/SENSORS56945.2023.10325196",

language = "English",

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note = "2023 IEEE SENSORS : The 22nd IEEE Conference on Sensors ; Conference date: 29-10-2023 Through 01-11-2023",

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A Quartz Crystal Resonator Modified with a Metal-Organic Framework for Sensing of Benzene, Ethylbenzene, Toluene and Xylenes in Water. / Malhotra, Jaskaran Singh; Reichert, Per Holger; Sundberg, Jonas.
Proceedings of 2023 IEEE SENSORS. IEEE, 2023. (I E E E Sensors. Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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N2 - This work describes the use of a quartz crystal microbalance (QCM) based sensor for gravimetric sensing of benzene, toluene, ethylbenzene, and xylenes (BTEX). A film of a Cu-based metal-organic framework (MOF) capable of BTEX adsorption is deposited on the gold electrode of a quartz resonator (10 MHz). The sensor is operated under constant flow of water, simultaneously measuring frequency shifts in multiple harmonics. Introduction of BTEX compounds in the water shifts the frequency, enabling detection. Analysis of deviation in the 3rd and 5th harmonics enables discrimination of response from either of the BTEX molecules. The response time further enables understanding of diffusion kinetics of each molecule into the framework.

AB - This work describes the use of a quartz crystal microbalance (QCM) based sensor for gravimetric sensing of benzene, toluene, ethylbenzene, and xylenes (BTEX). A film of a Cu-based metal-organic framework (MOF) capable of BTEX adsorption is deposited on the gold electrode of a quartz resonator (10 MHz). The sensor is operated under constant flow of water, simultaneously measuring frequency shifts in multiple harmonics. Introduction of BTEX compounds in the water shifts the frequency, enabling detection. Analysis of deviation in the 3rd and 5th harmonics enables discrimination of response from either of the BTEX molecules. The response time further enables understanding of diffusion kinetics of each molecule into the framework.

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KW - Analyte discrimination

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DO - 10.1109/SENSORS56945.2023.10325196

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BT - Proceedings of 2023 IEEE SENSORS

PB - IEEE

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A Quartz Crystal Resonator Modified with a Metal-Organic Framework for Sensing of Benzene, Ethylbenzene, Toluene and Xylenes in Water

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Keywords

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