Ultrathin two-dimensional porous organic nanosheets with molecular rotors for chemical sensing

Jinqiao Dong, Kang Zhang, Xu Li, Yuhong Qian, Hai Zhu, Daqiang Yuan, Qing-Hua Xu, Jianwen Jiang and Dan Zhao ()
Additional contact information
Jinqiao Dong: National University of Singapore
Kang Zhang: National University of Singapore
Xu Li: National University of Singapore
Yuhong Qian: National University of Singapore
Hai Zhu: National University of Singapore
Daqiang Yuan: Chinese Academy of Sciences
Qing-Hua Xu: National University of Singapore
Jianwen Jiang: National University of Singapore
Dan Zhao: National University of Singapore

Nature Communications, 2017, vol. 8, issue 1, 1-14

Abstract: Abstract Molecular rotors have played an important role in recent materials chemistry. Although several studies on functional materials containing molecular rotors have been reported for fluorescence sensing, this concept has yet to be realized in two-dimensional (2D) materials. Here we report the preparation of all-carbon, π-conjugated 2D porous organic nanosheets, named NUS-24, which contain flexible tetraphenylethylene (TPE) units as the molecular rotors. NUS-24 nanosheets exhibit high stability, large lateral size, and ultrathin thickness (2–5 nm). The dynamic TPE rotors exposed on the surface of NUS-24 nanosheets can be restricted in the aggregated state with different water fractions, which is reminiscent of the aggregation-induced emission mechanism, thereby leading to the size-selective turn-on fluorescence by volatile organic compounds. Significantly, the ultrathin 2D nanosheets and its composite membranes show much higher sensitivity and selectivity toward Fe3+ ions and nitro-containing compounds sensing, suggesting their potential applications in explosive detection and environmental monitoring.

Date: 2017
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-017-01293-x Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01293-x

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-017-01293-x

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().