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

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

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 achie...

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Veröffentlicht in:ACS applied polymer materials 2019-09, Vol.1 (9), p.2267-2272
Hauptverfasser: Singha, Nilotpal, Neogi, Samya, Pramanik, Bapan, Das, Saurav, Dasgupta, Antara, Ghosh, Ranajit, Das, Debapratim
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container_end_page 2272
container_issue 9
container_start_page 2267
container_title ACS applied polymer materials
container_volume 1
creator Singha, Nilotpal
Neogi, Samya
Pramanik, Bapan
Das, Saurav
Dasgupta, Antara
Ghosh, Ranajit
Das, Debapratim
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.
doi_str_mv 10.1021/acsapm.9b00594
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title Ultrafast, Highly Sensitive, and Selective Detection of p‑Xylene at Room Temperature by Peptide-Hydrogel-Based Composite Material
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