Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3
In this work we investigate the detection performance of nanofibers of tin oxide (SnO2) towards sub-0.1 ppm nitrogen oxide (NO2) and ozone (O3) in air. It is found that SnO2 nanofibers are more sensitive to O3 than to NO2. and the optimal working temperature differs significantly between the two gas...
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| Format: | Article |
| Language: | English |
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IFSA Publishing, S.L.
2020-11-01
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| Series: | Sensors & Transducers |
| Subjects: | |
| Online Access: | https://sensorsportal.com/HTML/DIGEST/november_2020/Vol_246/P_3189.pdf |
| _version_ | 1797754480665559040 |
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| author | Sergio MASA Diego ROBÉS Esther HONTAÑÓN Jesús LOZANO |
| author_facet | Sergio MASA Diego ROBÉS Esther HONTAÑÓN Jesús LOZANO |
| author_sort | Sergio MASA |
| collection | DOAJ |
| description | In this work we investigate the detection performance of nanofibers of tin oxide (SnO2) towards sub-0.1 ppm nitrogen oxide (NO2) and ozone (O3) in air. It is found that SnO2 nanofibers are more sensitive to O3 than to NO2. and the optimal working temperature differs significantly between the two gases: 200 0C (NO2) and 350 0C (O3). SnO2 nanofibers loaded with reduced graphene oxide (rGO) show higher sensitivity than nanofibers of pure SnO2 at low temperatures and the optimal working temperature diminishes by around 150 0C for the two gases. The air humidity does not modify the optimum working temperature of rGO-loaded SnO2 nanofibers but it affects their sensitivity at temperatures below 150 0C. Irradiation with UV light is a promising method to activate gas desorption from rGO-loaded SnO2 nanofibers so that this material could be used in chemiresistive sensors for low temperature detection of air pollutants. |
| first_indexed | 2024-03-12T17:34:02Z |
| format | Article |
| id | doaj.art-ce0aa29c226c41db9ffcebb1f9b8bdea |
| institution | Directory Open Access Journal |
| issn | 2306-8515 1726-5479 |
| language | English |
| last_indexed | 2024-03-12T17:34:02Z |
| publishDate | 2020-11-01 |
| publisher | IFSA Publishing, S.L. |
| record_format | Article |
| series | Sensors & Transducers |
| spelling | doaj.art-ce0aa29c226c41db9ffcebb1f9b8bdea2023-08-04T15:27:17ZengIFSA Publishing, S.L.Sensors & Transducers2306-85151726-54792020-11-0124677178Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3Sergio MASA0Diego ROBÉS1Esther HONTAÑÓN2Jesús LOZANO3Spanish National Research Council, Dept. of Sensors and Ultrasonic SystemsPolytechnic University of Madrid, Dept. of Chemical Industrial and Environmental EngineeringSpanish National Research Council, Dept. of Sensors and Ultrasonic SystemsUniversity of Extremadura, Dept. of Electrical, Electronic and Automation EngineeringIn this work we investigate the detection performance of nanofibers of tin oxide (SnO2) towards sub-0.1 ppm nitrogen oxide (NO2) and ozone (O3) in air. It is found that SnO2 nanofibers are more sensitive to O3 than to NO2. and the optimal working temperature differs significantly between the two gases: 200 0C (NO2) and 350 0C (O3). SnO2 nanofibers loaded with reduced graphene oxide (rGO) show higher sensitivity than nanofibers of pure SnO2 at low temperatures and the optimal working temperature diminishes by around 150 0C for the two gases. The air humidity does not modify the optimum working temperature of rGO-loaded SnO2 nanofibers but it affects their sensitivity at temperatures below 150 0C. Irradiation with UV light is a promising method to activate gas desorption from rGO-loaded SnO2 nanofibers so that this material could be used in chemiresistive sensors for low temperature detection of air pollutants.https://sensorsportal.com/HTML/DIGEST/november_2020/Vol_246/P_3189.pdftin oxide nanofibersreduced graphene oxideelectrospinninguv irradiationair pollution |
| spellingShingle | Sergio MASA Diego ROBÉS Esther HONTAÑÓN Jesús LOZANO Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 Sensors & Transducers tin oxide nanofibers reduced graphene oxide electrospinning uv irradiation air pollution |
| title | Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 |
| title_full | Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 |
| title_fullStr | Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 |
| title_full_unstemmed | Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 |
| title_short | Graphene-Tin Oxide Composite Nanofibers for Low Temperature Detection of NO2 and O3 |
| title_sort | graphene tin oxide composite nanofibers for low temperature detection of no2 and o3 |
| topic | tin oxide nanofibers reduced graphene oxide electrospinning uv irradiation air pollution |
| url | https://sensorsportal.com/HTML/DIGEST/november_2020/Vol_246/P_3189.pdf |
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