Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing
A high sensitivity and simple ethanol sensor based on an un-cladded multimode plastic optical fiber (UCPOF) coated with carbon nanotubes (CNTs) for the detection of different concentrations of ethanol in de-ionized water is developed and demonstrated. The UCPOF probe is fabricated by chemically remo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Optical Society of America
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54568/1/Modified%20plastic%20optical%20fiber%20with%20CNT.pdf |
| _version_ | 1825931063244881920 |
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| author | Khalaf, Ahmed Lateef M. Thirunavakkarasu, Punithavathi Lim, H. N Paiman, Suriati Yusof, Nor Azah Mahdi, Mohd Adzir Yaacob, Mohd Hanif |
| author_facet | Khalaf, Ahmed Lateef M. Thirunavakkarasu, Punithavathi Lim, H. N Paiman, Suriati Yusof, Nor Azah Mahdi, Mohd Adzir Yaacob, Mohd Hanif |
| author_sort | Khalaf, Ahmed Lateef |
| collection | UPM |
| description | A high sensitivity and simple ethanol sensor based on an un-cladded multimode plastic optical fiber (UCPOF) coated with carbon nanotubes (CNTs) for the detection of different concentrations of ethanol in de-ionized water is developed and demonstrated. The UCPOF probe is fabricated by chemically removing the fiber cladding and integrated with CNT as a sensing layer. The effect of surface morphology on the sensor performance is investigated by characterizing another UCPOF coated with GO nanomaterial. The developed fibers are coated with CNTs and GO using drop casting technique. Energy dispersive X-ray spectroscopy (EDX), atomic-force microscopy (AFM) and scanning electron microscope (SEM) are used to investigate the element and morphology of the synthesized nanomaterials. The experimental results indicated that the absorbance spectrum of the CNT-based UCPOF sensor increases linearly with a higher sensitivity of 0.68/vol% and magnitude change of 95.4% as compared to 0.19/vol% and 56.3%, respectively, for the GO-based sensor. The UCPOF coated with CNT exhibits faster response and recovery than that of GO. The sensor shows high selectivity to ethanol amongst a range of diluted organic VOCs. The superior sensing performance of the developed fiber sensor indicates its high efficiency for ethanol detection in various industrial applications. |
| first_indexed | 2024-03-06T09:21:03Z |
| format | Article |
| id | upm.eprints-54568 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:21:03Z |
| publishDate | 2017 |
| publisher | Optical Society of America |
| record_format | dspace |
| spelling | upm.eprints-545682020-03-10T03:58:53Z http://psasir.upm.edu.my/id/eprint/54568/ Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing Khalaf, Ahmed Lateef M. Thirunavakkarasu, Punithavathi Lim, H. N Paiman, Suriati Yusof, Nor Azah Mahdi, Mohd Adzir Yaacob, Mohd Hanif A high sensitivity and simple ethanol sensor based on an un-cladded multimode plastic optical fiber (UCPOF) coated with carbon nanotubes (CNTs) for the detection of different concentrations of ethanol in de-ionized water is developed and demonstrated. The UCPOF probe is fabricated by chemically removing the fiber cladding and integrated with CNT as a sensing layer. The effect of surface morphology on the sensor performance is investigated by characterizing another UCPOF coated with GO nanomaterial. The developed fibers are coated with CNTs and GO using drop casting technique. Energy dispersive X-ray spectroscopy (EDX), atomic-force microscopy (AFM) and scanning electron microscope (SEM) are used to investigate the element and morphology of the synthesized nanomaterials. The experimental results indicated that the absorbance spectrum of the CNT-based UCPOF sensor increases linearly with a higher sensitivity of 0.68/vol% and magnitude change of 95.4% as compared to 0.19/vol% and 56.3%, respectively, for the GO-based sensor. The UCPOF coated with CNT exhibits faster response and recovery than that of GO. The sensor shows high selectivity to ethanol amongst a range of diluted organic VOCs. The superior sensing performance of the developed fiber sensor indicates its high efficiency for ethanol detection in various industrial applications. Optical Society of America 2017 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54568/1/Modified%20plastic%20optical%20fiber%20with%20CNT.pdf Khalaf, Ahmed Lateef and M. Thirunavakkarasu, Punithavathi and Lim, H. N and Paiman, Suriati and Yusof, Nor Azah and Mahdi, Mohd Adzir and Yaacob, Mohd Hanif (2017) Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing. Optics Express, 25 (5). pp. 5509-5520. ISSN 1094-4087 https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-5-5509 10.1364/OE.25.005509 |
| spellingShingle | Khalaf, Ahmed Lateef M. Thirunavakkarasu, Punithavathi Lim, H. N Paiman, Suriati Yusof, Nor Azah Mahdi, Mohd Adzir Yaacob, Mohd Hanif Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title | Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title_full | Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title_fullStr | Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title_full_unstemmed | Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title_short | Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing |
| title_sort | modified plastic optical fiber with cnt and graphene oxide nanostructured coatings for ethanol liquid sensing |
| url | http://psasir.upm.edu.my/id/eprint/54568/1/Modified%20plastic%20optical%20fiber%20with%20CNT.pdf |
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