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A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection

Zeolitic imidazolate framework-67 (ZIF-67), carbon nanoparticles (CNPs), and the CNPs@ZIF-67 composite were prepared and used to fabricate sensors for the detection of acetone vapour. The prepared materials were characterized using transmission electron microscopy, powder X-ray diffraction, X-ray ph...

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Autores principales: Malepe, Lesego, Ndinteh, Tantoh Derek, Ndungu, Patrick, Mamo, Messai Adenew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10044860/
https://www.ncbi.nlm.nih.gov/pubmed/36998651
http://dx.doi.org/10.1039/d3na00050h
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author Malepe, Lesego
Ndinteh, Tantoh Derek
Ndungu, Patrick
Mamo, Messai Adenew
author_facet Malepe, Lesego
Ndinteh, Tantoh Derek
Ndungu, Patrick
Mamo, Messai Adenew
author_sort Malepe, Lesego
collection PubMed
description Zeolitic imidazolate framework-67 (ZIF-67), carbon nanoparticles (CNPs), and the CNPs@ZIF-67 composite were prepared and used to fabricate sensors for the detection of acetone vapour. The prepared materials were characterized using transmission electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and Fourier-transform infrared spectroscopy. The sensors were tested using an LCR meter under the resistance parameter. It was found that the ZIF-67 sensor did not respond at room temperature, the CNP sensor had a non-linear response to all analytes, and the CNPs/ZIF-67 sensor had an excellent linear response to acetone vapour and was less sensitive to 3-pentanone, 4-methyl-1-hexene, toluene and cyclohexane vapours. However, it was found that ZIF-67 improves carbon soot sensor sensitivity by 155 times, wherein the sensitivity of the carbon soot sensor and carbon soot@ZIF-67 sensor on acetone vapour was found to be 0.0004 and 0.062 respectively. In addition, the sensor was found to be insensitive to humidity and the limit of detection was 484 ppb at room temperature.
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spelling pubmed-100448602023-03-29 A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection Malepe, Lesego Ndinteh, Tantoh Derek Ndungu, Patrick Mamo, Messai Adenew Nanoscale Adv Chemistry Zeolitic imidazolate framework-67 (ZIF-67), carbon nanoparticles (CNPs), and the CNPs@ZIF-67 composite were prepared and used to fabricate sensors for the detection of acetone vapour. The prepared materials were characterized using transmission electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and Fourier-transform infrared spectroscopy. The sensors were tested using an LCR meter under the resistance parameter. It was found that the ZIF-67 sensor did not respond at room temperature, the CNP sensor had a non-linear response to all analytes, and the CNPs/ZIF-67 sensor had an excellent linear response to acetone vapour and was less sensitive to 3-pentanone, 4-methyl-1-hexene, toluene and cyclohexane vapours. However, it was found that ZIF-67 improves carbon soot sensor sensitivity by 155 times, wherein the sensitivity of the carbon soot sensor and carbon soot@ZIF-67 sensor on acetone vapour was found to be 0.0004 and 0.062 respectively. In addition, the sensor was found to be insensitive to humidity and the limit of detection was 484 ppb at room temperature. RSC 2023-02-16 /pmc/articles/PMC10044860/ /pubmed/36998651 http://dx.doi.org/10.1039/d3na00050h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Malepe, Lesego
Ndinteh, Tantoh Derek
Ndungu, Patrick
Mamo, Messai Adenew
A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title_full A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title_fullStr A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title_full_unstemmed A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title_short A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection
title_sort humidity-resistant and room temperature carbon soot@zif-67 composite sensor for acetone vapour detection
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10044860/
https://www.ncbi.nlm.nih.gov/pubmed/36998651
http://dx.doi.org/10.1039/d3na00050h
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