Jump to main content
Jump to site search


Soluble graphene composite with aggregation-induced emission feature: non-covalent functionalization and application in explosive detection

Author affiliations

Abstract

Herein, a soluble graphene-based material exhibiting the aggregation-induced emission (AIE) feature was prepared for the first time via wet chemistry by the chemical reduction of graphene oxide (GO). Moreover, three conjugated polymers containing tetraphenylethylene, carbazole and phenyl groups were used as stabilizers during the reduction of GO in tetrahydrofuran (THF) solution due to the π–π interaction and polymer wrapping effect; the resultant graphene composites containing different amounts of rGO were soluble in organic solvents. Among the three polymers, P1 exhibits the strongest affinity towards rGO, and rGO–P1 in THF solution is stable for months at the concentration of 1.5 mg mL−1. Furthermore, rGO–P1 is AIE-active and its PL intensity is 6.3-fold that of P1 under the same conditions (THF/H2O = 10/90, v/v). The distinguished optical properties and AIE effect of rGO–P1 allow it to act as a chemosensor for the detection of explosives in both the aggregate and solid state with high sensitivity. In the aggregate state, the detectable concentration is as low as 1.3 ppb and the quenching constant is up to 4.16 × 106 M−1, which enable its trace detection of picric acid.

Graphical abstract: Soluble graphene composite with aggregation-induced emission feature: non-covalent functionalization and application in explosive detection

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Mar 2017, accepted on 24 May 2017 and first published on 24 May 2017


Article type: Paper
DOI: 10.1039/C7TC01194F
Citation: J. Mater. Chem. C, 2017, Advance Article
  •   Request permissions

    Soluble graphene composite with aggregation-induced emission feature: non-covalent functionalization and application in explosive detection

    P. Li, Z. Qu, X. Chen, X. Huo, X. Zheng, D. Wang, W. Yang, L. Ji, P. Liu and X. Xu, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC01194F

Search articles by author

Spotlight

Advertisements