Issue 35, 2017

Langmuir–Blodgett films of perylene bisimide derivatives and fluorescent recognition of diamines

Abstract

Fast, sensitive and selective detection of diamines in the vapor phase is of pivotal importance for air and food quality monitoring. In this work, an electron-poor fluorophore, perylene bisimide (PBI), was modified with hydrophilic residues at its bay positions, resulting in an amphiphilic derivative, PEBBO. Photophysical studies revealed that the compound shows a strong aggregation tendency in various solvents, but the aggregates could be highly fluorescent provided suitable solvents are used. Accordingly, a fluorescent film was constructed via utilization of the well-known Langmuir–Blodgett technique. Sensing performance studies revealed that the film as prepared is sensitive and selective to the presence of diamines in air. Specifically, (1) the experimental detection limit is lower than 0.016 g m−3 and the linear range of the analysis extends from 0.33 g m−3 to 8.20 g m−3 when ethylenediamine was adopted as an example analyte; (2) the presence of other amines and solvents shows little effect upon detection; (3) the response time is less than 5 s. Considering the importance of diamine sensing, the convenience of fluorescence techniques and the superiorities of the film and method as developed, it is believed that the present work is of great importance for promoting technical progress in diamine sensing.

Graphical abstract: Langmuir–Blodgett films of perylene bisimide derivatives and fluorescent recognition of diamines

Supplementary files

Article information

Article type
Paper
Submitted
23 juin 2017
Accepted
14 août 2017
First published
14 août 2017

Phys. Chem. Chem. Phys., 2017,19, 23898-23904

Langmuir–Blodgett films of perylene bisimide derivatives and fluorescent recognition of diamines

C. Shang, L. Wang, Y. An, P. Chen, X. Chang, Y. Qi, R. Kang and Y. Fang, Phys. Chem. Chem. Phys., 2017, 19, 23898 DOI: 10.1039/C7CP04235C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements