Issue 40, 2016

Modulating the optical properties of the AIE fluophor confined within UiO-66's nanochannels for chemical sensing

Abstract

Transformation of aggregation induced emission (AIE) molecules into functional materials can greatly tune their fluorescence properties and expand their related potential applications. Here, we demonstrate a facile strategy to modulate the fluorescence properties of AIE molecules by confining them within the nanochannels of metal–organic frameworks (MOFs). AIE molecules (4,4′-(hydrazine-1,2-diylidene bis(methanylylidene)) bis(3-hydroxybenzoic acid), HDBB) with pH-dependent emission were successfully integrated into UiO-66 resulting in a UiO-66⊃HDBB complex while maintaining the crystal structure by the host–guest process. The fluorescence properties of HDBB can be modulated by virtue of the unique nanospace confining effect. Furthermore, UiO-66⊃HDBB was used as a sensitive and selective fluorescent probe for Cu2+ detection in aqueous solution. This study provides a facile strategy for the construction of high performance AIE based luminescent materials with adjustable properties for potential applications.

Graphical abstract: Modulating the optical properties of the AIE fluophor confined within UiO-66's nanochannels for chemical sensing

Supplementary files

Article information

Article type
Paper
Submitted
15 Jul 2016
Accepted
30 Aug 2016
First published
30 Aug 2016

Nanoscale, 2016,8, 17489-17495

Modulating the optical properties of the AIE fluophor confined within UiO-66's nanochannels for chemical sensing

Z. Lu, M. Wu, S. Wu, S. Yang, Y. Li, X. Liu, L. Zheng, Q. Cao and Z. Ding, Nanoscale, 2016, 8, 17489 DOI: 10.1039/C6NR05600H

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