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Issue 3, 2014
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APTS and rGO co-functionalized pyrenated fluorescent nanonets for representative vapor phase nitroaromatic explosive detection†

Linjuan Guo,‡ab   Baiyi Zu,‡b   Zheng Yang,bc   Hongyu Cao,a   Xuefang Zheng*a  and  Xincun Dou*b  
Author affiliations

* Corresponding authors

a School of Life Science and Biotechnology, Liaoning Key Lab of Bio-organic Chemistry, Dalian University, Dalian 116622, Liaoning Province, P. R. China
E-mail: dlxfzheng@126.com
Tel: +86-411-87403720

b Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
E-mail: xcdou@ms.xjb.ac.cn
Fax: +86-991-3838957
Tel: +86-991-3677875

c University of the Chinese Academy of Sciences, Beijing 100049, China

Abstract

For the first time, flexible PVP/pyrene/APTS/rGO fluorescent nanonets were designed and synthesized via a one-step electrospinning method to detect representative subsaturated nitroaromatic explosive vapor. The functional fluorescent nanonets, which were highly stable in air, showed an 81% quenching efficiency towards TNT vapor (∼10 ppb) with an exposure time of 540 s at room temperature. The nice performance of the nanonets was ascribed to the synergistic effects induced by the specific adsorption properties of APTS, the fast charge transfer properties and the effective π–π interaction with pyrene and TNT of rGO. Compared to the analogues of TNT, the PVP/pyrene/APTS/rGO nanonets showed notable selectivity towards TNT and DNT vapors. The explored functionalization method opens up brand new insight into sensitive and selective detection of vapor phase nitroaromatic explosives.

Graphical abstract: APTS and rGO co-functionalized pyrenated fluorescent nanonets for representative vapor phase nitroaromatic explosive detection

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Supplementary files

Article information

https://doi.org/10.1039/C3NR04960D
Submitted
17 Sep 2013
Accepted
06 Nov 2013
First published
11 Nov 2013
Nanoscale, 2014,6, 1467-1473
Article type
Paper
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APTS and rGO co-functionalized pyrenated fluorescent nanonets for representative vapor phase nitroaromatic explosive detection

L. Guo, B. Zu, Z. Yang, H. Cao, X. Zheng and X. Dou, Nanoscale, 2014, 6, 1467
DOI: 10.1039/C3NR04960D

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