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.

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Abstract

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.

Item Type:	Article
Subjects:	Chemistry
Depositing User:	Dr. Arup Kr. Nandi
Date Deposited:	15 Jan 2021 06:38
Last Modified:	15 Jan 2021 06:38
URI:	http://cmeri.csircentral.net/id/eprint/687

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