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Covalent Organic Framework Hosting Metalloporphyrin‐Based Carbon Dots for Visible‐Light‐Driven Selective CO 2 Reduction
Author(s) -
Zhong Hong,
Sa Rongjian,
Lv Haowei,
Yang Shuailong,
Yuan Daqiang,
Wang Xinchen,
Wang Ruihu
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202002654
Subject(s) - covalent organic framework , catalysis , materials science , photocatalysis , covalent bond , adsorption , flue gas , carbon fibers , visible spectrum , selectivity , rational design , selective catalytic reduction , nanotechnology , chemical engineering , photochemistry , organic chemistry , chemistry , optoelectronics , composite number , engineering , composite material
The visible‐light‐driven photocatalytic CO 2 reduction is one appealing approach to simultaneously mitigate the energy crisis and environmental issues. It is highly desirable but challenging to selectively and efficiently convert CO 2 into desirable products. Herein, a covalent organic framework hosting metalloporphyrin‐based carbon dots (M‐PCD@TD‐COF, M = Ni, Co, and Fe) is first presented, which serves as heterogeneous catalysts for CO 2 photoreduction. M‐PCD@TD‐COF not only enriches available COF‐based catalytic materials, but also provides suitable environment for CO 2 adsorption and activation on metalloporphyrin‐based carbon dots. The advantages of the host environment in COFs are highlighted by the satisfactory catalytic activity and remarkable selectivity of CO 2 ‐to‐CO conversion over H 2 generation up to 98%. The photocatalytic system is effective for both pure CO 2 and the simulated flue gas. This work provides new protocols for the rational design of COF‐based heterogeneous catalysts for selective CO 2 photoreduction.