Issue 4, 2024

Cyano-modified poly(triazine imide) with extended π-conjugation for photocatalytic biological cofactor regeneration

Abstract

Developing biological cofactor regeneration strategies is crucial for photo-enzyme coupling systems. Here, crystalline poly(triazine imide) (PTI) containing the cyano group (–C[triple bond, length as m-dash]N) is designed for photocatalytic nicotinamide cofactor oxidation regeneration via π–π interaction. The π-conjugation degree and electron delocalization of PTI can be regulated through –C[triple bond, length as m-dash]N modification. Such a unique extended π-conjugated system promotes the adsorption of the reduced-state nicotinamide cofactor (NADH) on the aromatic skeleton. Moreover, the enhanced charge transfer dynamics expedite the formation of intermediate active species. Accordingly, the optimized conversion rate of NADH to NAD+ reached 98.2% within 60 min. In contrast, pristine PTI and amorphous polymeric carbon nitride (PCN) gave oxidation yields of 88.1% and 56.8%, respectively. The exclusive selectivity of the oxidized product was further verified by the enzymatic method and nuclear magnetic resonance characterization. This study introduces an innovative method for modulating non-covalent interactions for photo-enzymatic catalysis via the extended π-conjugated system.

Graphical abstract: Cyano-modified poly(triazine imide) with extended π-conjugation for photocatalytic biological cofactor regeneration

Supplementary files

Article information

Article type
Paper
Submitted
10 Dec 2023
Accepted
14 Jan 2024
First published
15 Jan 2024

Catal. Sci. Technol., 2024,14, 903-911

Cyano-modified poly(triazine imide) with extended π-conjugation for photocatalytic biological cofactor regeneration

J. Liu, J. Li, F. Xing and J. Liu, Catal. Sci. Technol., 2024, 14, 903 DOI: 10.1039/D3CY01708G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements