Jump to main content
Jump to site search

Issue 9, 2019
Previous Article Next Article

Ionic liquid-decorated COF and its covalent composite aerogel for selective CO2 adsorption and catalytic conversion

Author affiliations

Abstract

Atmospheric CO2 is closely related to the greenhouse effect. Therefore, new practical materials and techniques for highly selective CO2 adsorption and catalytic conversion are imperative. Covalent composites of covalent organic frameworks (COFs) with polymers (oligomers) might be a promising approach to meeting the multifaceted requirements of CO2 treatment. Herein, a novel COF–chitosan composite aerogel (COF-IL@chitosan) was designed and fabricated by chemical crosslinking of an allyl-imidazolium ionic liquid-decorated COF (COF-IL) with a thiol-attached chitosan (chitosan–SH) binder via a photoinduced thiol–ene reaction. The crystalline structure, highly selective CO2 adsorption and catalytic conversion features of COF-IL were found to be well maintained in the composite aerogel. The generated covalently coupled COF–chitosan composite material COF-IL@chitosan was found to be robust, uniform and processable even with a remarkably high COF loading (up to 80 wt%). More importantly, the processable COF-IL@chitosan aerogel could be readily shaped into a simplified fixed-bed reactor model via a facile templated freeze-drying procedure, and a scaled-up recyclable CO2 cycloaddition reaction was realized.

Graphical abstract: Ionic liquid-decorated COF and its covalent composite aerogel for selective CO2 adsorption and catalytic conversion

Back to tab navigation

Supplementary files

Article information


Submitted
13 Dec 2018
Accepted
28 Jan 2019
First published
28 Jan 2019

J. Mater. Chem. A, 2019,7, 4689-4698
Article type
Paper

Ionic liquid-decorated COF and its covalent composite aerogel for selective CO2 adsorption and catalytic conversion

L. Ding, B. Yao, F. Li, S. Shi, N. Huang, H. Yin, Q. Guan and Y. Dong, J. Mater. Chem. A, 2019, 7, 4689
DOI: 10.1039/C8TA12046C

Social activity

Search articles by author

Spotlight

Advertisements