Issue 33, 2016

A new triazine functionalized luminescent covalent organic framework for nitroaromatic sensing and CO2 storage

Abstract

A new hexagonally ordered covalent organic framework (COF), TRIPTA has been synthesized using Schiff base condensation reaction between 1,3,5-tris-(4-aminophenyl)triazine (TAPT) and 1,3,5-triformylphloroglucinol (TFP). TRIPTA exhibits high crystallinity, a large BET surface area (609 m2 g−1) and pore volume (0.351 cm3 g−1) and possesses high nitrogen content (14.97%). TRIPTA was found to be highly luminescent when suspended in polar solvents upon irradiation of UV light and can detect various nitroaromatic compounds with good sensitivity by fluorescence quenching at concentrations as low as in the range of 10−8 M. The maximum fluorescence quenching was observed for trinitrophenol (61.7% at 5.46 × 10−7 M) with a Stern–Volmer constant of 2.7 × 106 M−1. The COF also showed excellent CO2 uptake capacity of 57.07 wt% at 273 K and 16.02 wt% at 298 K up to 5 bar pressure, with an initial heat of adsorption (Qst) value 56.77 kJ mol−1.

Graphical abstract: A new triazine functionalized luminescent covalent organic framework for nitroaromatic sensing and CO2 storage

Supplementary files

Article information

Article type
Paper
Submitted
20 jan 2016
Accepted
03 mrt 2016
First published
04 mrt 2016

RSC Adv., 2016,6, 28047-28054

A new triazine functionalized luminescent covalent organic framework for nitroaromatic sensing and CO2 storage

R. Gomes and A. Bhaumik, RSC Adv., 2016, 6, 28047 DOI: 10.1039/C6RA01717G

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