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Ultrafast, Highly Sensitive, and Selective Detection of p-Xylene at Room Temperature by Peptide-Hydrogel-Based Composite Material

IR@CMERI: CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur

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Title Ultrafast, Highly Sensitive, and Selective Detection of p-Xylene at Room Temperature by Peptide-Hydrogel-Based Composite Material
 
Creator Singha, Nilotpal
Neogi, Samya
Pramanik, Bapan
Das, Saurav
Dasgupta, Antara
Ghosh, Ranajit
Das, Debapratim
 
Subject Chemistry
 
Description A peptide/carbon dot (CD) composite xerogel is used as a selective p-xylene VOC (volatile organic compound) sensor. The fiber formation by the peptide allows us to attain a semiconducting property, whereas the presence of the CD amplifies the sensitivity. The selective detection of p-xylene is achieved at a very low concentration (response ≈ 96% for 50 ppm) with an ultrafast response (630 ms) and recovery (540 ms). The sensor is also able to detect p-xylene within crude oil, proving its industrial application. In comparison with the available VOC sensors, this work stands out as a low-cost, sensitive, and selective room-temperature p-xylene sensor with ultrafast sensing ability.
 
Publisher ACS
 
Date 2019-09-13
 
Type Article
PeerReviewed
 
Identifier Singha, Nilotpal and Neogi, Samya and Pramanik, Bapan and Das, Saurav and Dasgupta, Antara and Ghosh, Ranajit and Das, Debapratim (2019) Ultrafast, Highly Sensitive, and Selective Detection of p-Xylene at Room Temperature by Peptide-Hydrogel-Based Composite Material. ACS Applied Polymer Materials, 1 (9). pp. 2267-2272.
 
Relation http://cmeri.csircentral.net/687/