Recent advances in conjugated microporous polymers for photocatalysis: designs, applications, and prospects

Abstract

Conjugated microporous polymers (CMPs) provide a platform to construct light harvesting systems and catalytic centers to realize solar energy conversion.

Boosting the Photocatalytic Hydrogen Evolution Activity for D–π–A Conjugated Microporous Polymers by Statistical Copolymerization

“…A particular advantage of organic polymers is the designable molecular structure, which allows one to tune, in a broad range, the polymer structures and electronic properties of polymeric semiconductor photocatalysts by using different synthetic strategies and the selection of building blocks. [ 24–26 ] For instance, it has been proved that building a donor–acceptor (D–A) polymer structure is an efficient strategy to enhance the photocatalytic activity of organic polymer photocatalysts, since the electron push–pull system in a D–A polymer can enhance the separation of light‐induced electron/hole pairs. [ 27–29 ] The combination of a polycyclic aromatic donor and an electron‐withdrawing acceptor results in enhanced electron push–pull effect that further increases the separation capability of charge carriers, [ 30–33 ] leading to an enhanced photocatalytic activity.…”

Carbon dioxide adsorption based on porous materials

“…CMPs originate from different routes such as permanent micropores, conjugated organic frameworks, and p-electron conjugated systems. 186,187 To enhance the performance of CMPs towards CO 2 adsorption, researchers introduced electron-rich groups such as N, O, Si, and other heteroatoms. Xu et al 188 prepared CMPs based on 1,4,5,8-naphthalene tetracarboxylic dianhydride (NTDA), tetrakis (4-aminophenyl) ethene (TPE-NH 2 ) core with pyromellitic dianhydride (PMDA), and 3,3 0 ,4,4 0biphenyl tetracarboxylic dianhydride (BTDA).…”

New Approach in the Application of Conjugated Polymers: The Light-Activated Source of Versatile Singlet Oxygen Molecule

“…These properties make them attractive for the visible light-driven photocatalysis either in batch or continuous-flow reactors [ 109 ]. The conjugated microporous polymers can consist of the classical photosensitizers, such as porphyrines or phthalocyanines, but structures such as thiophene, perylene or carbazole, commonly studied in the organic electronics, can also serve as CMPs’ building blocks [ 110 , 111 ]. CMPs are obtained in numerous types of coupling or condensation reactions and the chosen synthetic methodology influences optical, redox and morphological properties of the catalyst [ 112 ].…”