Novel One-Dimensional Covalent Organic Framework as a H + Fluorescent Sensor in Acidic Aqueous Solution

Covalent organic frameworks (COFs) represent an emerging class of two- or three-dimensional crystalline porous materials with delicate control over topology, composition, and porosity. Here, we develop a new COF made up of 1,3,6,8-tetrakis( -formylphenyl)pyrene (TFPPy) and 4,4'-diaminobenzophen...

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Published inACS applied materials & interfaces Vol. 13; no. 1; pp. 1145 - 1151
Main Authors Chen, Ziao, Wang, Kai, Hu, Xuening, Shi, Pengzhong, Guo, Zhiyong, Zhan, Hongbing
Format Journal Article
LanguageEnglish
Published United States 13.01.2021
Subjects
aqueous solutions
crystal structure
fluorescence
porosity
surface area
thermal stability
topology
H+ fluorescent sensor
one-dimensional COF
porosity
pyrene
topology structures
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Summary:Covalent organic frameworks (COFs) represent an emerging class of two- or three-dimensional crystalline porous materials with delicate control over topology, composition, and porosity. Here, we develop a new COF made up of 1,3,6,8-tetrakis( -formylphenyl)pyrene (TFPPy) and 4,4'-diaminobenzophenone (DABP) that exhibits a rare one-dimensional (1D) structure. The resulting frameworks possess good crystallinity, comparatively high Brunauer-Emmett-Teller (BET) surface area (426 m /g), and good thermal stability (360 °C). Impressively, this 1D COF shows strong fluorescence and can be used as an excellent H sensor in an acidic aqueous solution.
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ISSN:1944-8244
1944-8252
1944-8252
DOI:10.1021/acsami.0c16116