Issue 17, 2024

Post-synthetic exchange in a zirconium metal–organic framework for efficient photoreduction of CO2 to formate

Abstract

The reduction of CO2 to useful products such as formic acid is of immense industrial importance. In the present report, we have studied the CO2 reduction performance of a Zr MOF and its titanium-exchanged analogs. A naphthalene diimide tetracarboxylic acid (TNDI) linker-based metal–organic framework with zirconium metal was synthesized for effective photocatalytic CO2 reduction in aqueous medium. This water-stable MOF was able to achieve formate production at a rate of 38 μmol g−1 h−1. Higher production rates and yields were achieved through the post-synthetic metal exchange of Zr with Ti. The new mixed metal MOF with 20% and 30% exchange of Zr with Ti metal resulted in the reduction of the band gap of the pristine MOF, which led to higher production rates of 50 μmol g−1 h−1 and 71 μmol g−1 h−1 of formate, respectively. Detailed photocatalytic experiments have been carried out to understand the mechanism of the enhancement of the formate production upon exchange with Ti metal.

Graphical abstract: Post-synthetic exchange in a zirconium metal–organic framework for efficient photoreduction of CO2 to formate

Supplementary files

Article information

Article type
Paper
Submitted
21 May 2024
Accepted
20 Jul 2024
First published
31 Jul 2024
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2024,5, 6936-6943

Post-synthetic exchange in a zirconium metal–organic framework for efficient photoreduction of CO2 to formate

A. Chandran P., G. Radha, P. C. Meenu, S. Roy and H. Aggarwal, Mater. Adv., 2024, 5, 6936 DOI: 10.1039/D4MA00517A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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