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Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring
Natural carbon powder has been used as a precursor to prepare two main types of sensitising agents of nitrogen-doped carbon nanoparticles (N-CNPs) and nitrogen-doped graphene quantum dots coupled to nanosheets (N-GQDs-NSs) by using simple treatments of chemical oxidation and centrifugation separatio...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405873/ https://www.ncbi.nlm.nih.gov/pubmed/30846771 http://dx.doi.org/10.1038/s41598-019-40433-9 |
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author | Parvizi, R. Azad, S. Dashtian, K. Ghaedi, M. Heidari, H. |
author_facet | Parvizi, R. Azad, S. Dashtian, K. Ghaedi, M. Heidari, H. |
author_sort | Parvizi, R. |
collection | PubMed |
description | Natural carbon powder has been used as a precursor to prepare two main types of sensitising agents of nitrogen-doped carbon nanoparticles (N-CNPs) and nitrogen-doped graphene quantum dots coupled to nanosheets (N-GQDs-NSs) by using simple treatments of chemical oxidation and centrifugation separation. Characterization based on FTIR, XPS, XRD, Raman spectroscopy, FE-SEM, HR-TEM, AFM, UV-Vis and FL, revealed successful doping carbon nanoparticle with nitrogen with an average plane dimension of 50 nm and relatively smooth surface. The versatility of the prepared samples as sensitising agents was developed and established by exploiting its ability for detection of volatile organic compounds via simple optical fibre based sensing configuration. The comparative experimental studies on the proposed sensor performance indicate fast response achieved at a few tens of seconds and excellent repeatability in exposure to the methanol vapour. The low limit of detection of 4.3, 4.9 and 10.5 ppm was obtained in exposure to the methanol, ethanol and propanol vapours, respectively, in the atmosphere condition. This study gives insights into the chemical/physical mechanism of an enhanced economic optical fibre based gas sensor and illustrates it for diverse sensing applications, especially for chemical vapour remote detection and future air quality monitoring. |
format | Online Article Text |
id | pubmed-6405873 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-64058732019-03-11 Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring Parvizi, R. Azad, S. Dashtian, K. Ghaedi, M. Heidari, H. Sci Rep Article Natural carbon powder has been used as a precursor to prepare two main types of sensitising agents of nitrogen-doped carbon nanoparticles (N-CNPs) and nitrogen-doped graphene quantum dots coupled to nanosheets (N-GQDs-NSs) by using simple treatments of chemical oxidation and centrifugation separation. Characterization based on FTIR, XPS, XRD, Raman spectroscopy, FE-SEM, HR-TEM, AFM, UV-Vis and FL, revealed successful doping carbon nanoparticle with nitrogen with an average plane dimension of 50 nm and relatively smooth surface. The versatility of the prepared samples as sensitising agents was developed and established by exploiting its ability for detection of volatile organic compounds via simple optical fibre based sensing configuration. The comparative experimental studies on the proposed sensor performance indicate fast response achieved at a few tens of seconds and excellent repeatability in exposure to the methanol vapour. The low limit of detection of 4.3, 4.9 and 10.5 ppm was obtained in exposure to the methanol, ethanol and propanol vapours, respectively, in the atmosphere condition. This study gives insights into the chemical/physical mechanism of an enhanced economic optical fibre based gas sensor and illustrates it for diverse sensing applications, especially for chemical vapour remote detection and future air quality monitoring. Nature Publishing Group UK 2019-03-07 /pmc/articles/PMC6405873/ /pubmed/30846771 http://dx.doi.org/10.1038/s41598-019-40433-9 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Parvizi, R. Azad, S. Dashtian, K. Ghaedi, M. Heidari, H. Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title | Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title_full | Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title_fullStr | Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title_full_unstemmed | Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title_short | Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring |
title_sort | natural source-based graphene as sensitising agents for air quality monitoring |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405873/ https://www.ncbi.nlm.nih.gov/pubmed/30846771 http://dx.doi.org/10.1038/s41598-019-40433-9 |
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