Facile construction of functionalized covalent organic framework-ionic liquid composites for CO2 capture and utilization

Abstract

The conversion and utilization of CO₂ are considered an appealing approach to address the greenhouse effect arising from excessive atmospheric CO₂ content. Here we present a facile construction of covalent organic framework-ionic liquid (COF-IL) composites under ambient conditions for conversion of CO₂ and epoxide into cyclic carbonate. The prepared composites feature decent CO₂ capture ability and reveal good catalytic performance and cycle stability with a yield of exceeding 95 % after five cycles. Therefore, we demonstrate a convenient method to synthesize functionalized heterogeneous catalyst for the conversion of CO₂ into high-valued chemical and thus a promising CO₂ resource utilization strategy.