A highly sensitive and flexible metal-organic framework polymer-based H2S gas sensor

Ashraf Ali; Ahmed Alzamly; Yaser E. Greish; Maram Bakiro; Ha L. Nguyen; Saleh T. Mahmoud

doi:10.1021/acsomega.1c02295

A highly sensitive and flexible metal-organic framework polymer-based H₂S gas sensor

Ashraf Ali, Ahmed Alzamly, Yaser E. Greish, Maram Bakiro, Ha L. Nguyen, Saleh T. Mahmoud

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

We report the fabrication of a novel metal-organic framework (MOF)-polymer mixed-matrix flexible membrane for the detection of hydrogen sulfide (H2S) gas at room temperature. This high-performance gas sensor is based on MOF-5 microparticles embedded on a conductivity-controlled chitosan (CS) organic membrane. The conductivity of the organic membrane is controlled by blending it with a glycerol ionic liquid (IL) at different concentrations. The sensor showed a remarkable detection sensitivity for H2S gas at a concentrations level as low as 1 ppm at room temperature. The MOF-5/CS/IL gas sensor demonstrates a highly desirable detection selectivity, fast response time (<8 s), recovery time of less than 30 s, and outstanding sensing stability averaging at 97% detection with 50 ppm of H2S gas. This composite having high sensitivity, low-power consumption, and flexibility holds great promise for addressing current challenges pertinent to environmental sustainability.

Original language	English
Pages (from-to)	17690-17697
Number of pages	8
Journal	ACS Omega
Volume	6
Issue number	27
DOIs	https://doi.org/10.1021/acsomega.1c02295
Publication status	Published - Jul 13 2021

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1021/acsomega.1c02295

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title = "A highly sensitive and flexible metal-organic framework polymer-based H2S gas sensor",

abstract = "We report the fabrication of a novel metal-organic framework (MOF)-polymer mixed-matrix flexible membrane for the detection of hydrogen sulfide (H2S) gas at room temperature. This high-performance gas sensor is based on MOF-5 microparticles embedded on a conductivity-controlled chitosan (CS) organic membrane. The conductivity of the organic membrane is controlled by blending it with a glycerol ionic liquid (IL) at different concentrations. The sensor showed a remarkable detection sensitivity for H2S gas at a concentrations level as low as 1 ppm at room temperature. The MOF-5/CS/IL gas sensor demonstrates a highly desirable detection selectivity, fast response time (<8 s), recovery time of less than 30 s, and outstanding sensing stability averaging at 97% detection with 50 ppm of H2S gas. This composite having high sensitivity, low-power consumption, and flexibility holds great promise for addressing current challenges pertinent to environmental sustainability.",

author = "Ashraf Ali and Ahmed Alzamly and Greish, {Yaser E.} and Maram Bakiro and Nguyen, {Ha L.} and Mahmoud, {Saleh T.}",

note = "Funding Information: The authors would like to thank Prof. Omar Yaghi (University of California Berkeley) for valuable discussions. This work was financially support by United Arab Emirates University (Grants Codes: USRP-G00003232 and fund code 31R238/activity code R238M4). Publisher Copyright: {\textcopyright} 2021 The Authors. American Chemical Society.",

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AU - Alzamly, Ahmed

AU - Greish, Yaser E.

AU - Bakiro, Maram

AU - Nguyen, Ha L.

AU - Mahmoud, Saleh T.

N1 - Funding Information: The authors would like to thank Prof. Omar Yaghi (University of California Berkeley) for valuable discussions. This work was financially support by United Arab Emirates University (Grants Codes: USRP-G00003232 and fund code 31R238/activity code R238M4). Publisher Copyright: © 2021 The Authors. American Chemical Society.

PY - 2021/7/13

Y1 - 2021/7/13

N2 - We report the fabrication of a novel metal-organic framework (MOF)-polymer mixed-matrix flexible membrane for the detection of hydrogen sulfide (H2S) gas at room temperature. This high-performance gas sensor is based on MOF-5 microparticles embedded on a conductivity-controlled chitosan (CS) organic membrane. The conductivity of the organic membrane is controlled by blending it with a glycerol ionic liquid (IL) at different concentrations. The sensor showed a remarkable detection sensitivity for H2S gas at a concentrations level as low as 1 ppm at room temperature. The MOF-5/CS/IL gas sensor demonstrates a highly desirable detection selectivity, fast response time (<8 s), recovery time of less than 30 s, and outstanding sensing stability averaging at 97% detection with 50 ppm of H2S gas. This composite having high sensitivity, low-power consumption, and flexibility holds great promise for addressing current challenges pertinent to environmental sustainability.

AB - We report the fabrication of a novel metal-organic framework (MOF)-polymer mixed-matrix flexible membrane for the detection of hydrogen sulfide (H2S) gas at room temperature. This high-performance gas sensor is based on MOF-5 microparticles embedded on a conductivity-controlled chitosan (CS) organic membrane. The conductivity of the organic membrane is controlled by blending it with a glycerol ionic liquid (IL) at different concentrations. The sensor showed a remarkable detection sensitivity for H2S gas at a concentrations level as low as 1 ppm at room temperature. The MOF-5/CS/IL gas sensor demonstrates a highly desirable detection selectivity, fast response time (<8 s), recovery time of less than 30 s, and outstanding sensing stability averaging at 97% detection with 50 ppm of H2S gas. This composite having high sensitivity, low-power consumption, and flexibility holds great promise for addressing current challenges pertinent to environmental sustainability.

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A highly sensitive and flexible metal-organic framework polymer-based H₂S gas sensor

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