Issue 30, 2020

Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

Abstract

In this study, a new strategy to establish a 3D local connection of building synthons and tune the functionalities of 2D covalent organic frameworks (COFs) was developed via in situ incorporation of multi-branched building blocks during the synthesis of COFs. The new COF material CPF-3 retains the features including surface area, crystallinity and stability of the pristine 2D COF COF-LZU1 and expands the light absorption range to the visible-light region via incorporation of accessible photoactive porphyrin sites with the 3D local connection. The Sn(IV)-metalated COF material Sn-CPF-3 exhibits high photocatalytic efficiency and selectivity in aerobic oxidation of sulfides to produce highly value-added sulfoxides with up to 23 334 turnovers and 648 h−1 turnover frequency under visible light irradiation.

Graphical abstract: Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

Supplementary files

Article information

Article type
Paper
Submitted
15 apr 2020
Accepted
07 jul 2020
First published
08 jul 2020

Nanoscale, 2020,12, 16136-16142

Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

X. Wang, M. Dong and C. Wu, Nanoscale, 2020, 12, 16136 DOI: 10.1039/D0NR02994G

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