Issue 6, 2023

Near-infrared photothermal conversion of polyoxometalate-modified gold nanorods for plasmon-enhanced catalysis

Abstract

Combining the high catalytic activity of polyoxometalates (POMs) and the near-infrared (NIR) photothermal property of gold nanorods (AuNRs), POM-modified AuNR composites were synthesized by ligand replacement and electrostatic adsorption. Such a combination has led to a type of unique plasmon-enhanced photothermal transformation catalysts for the selective oxidation of thioether derivatives in an aqueous system. The designed POM-modified AuNRs allowed the catalytic reaction to occur on the surface of the photothermal center. Under NIR laser irradiation, the higher local temperature caused by the photothermal conversion greatly improved the catalytic activity of the catalyst compared to external heating. The observed kinetic constant under photothermal conditions was more than five times that under external heating conditions. Moreover, these catalysts, which show structural stability and catalytic stability under NIR photothermal environment can not only maintain a high photothermal conversion efficiency but also can sustain the original catalytic activity even after 10 catalytic cycles.

Graphical abstract: Near-infrared photothermal conversion of polyoxometalate-modified gold nanorods for plasmon-enhanced catalysis

Supplementary files

Article information

Article type
Research Article
Submitted
29 Dec 2022
Accepted
15 Feb 2023
First published
16 Feb 2023

Inorg. Chem. Front., 2023,10, 1852-1862

Near-infrared photothermal conversion of polyoxometalate-modified gold nanorods for plasmon-enhanced catalysis

G. Wang, X. Chen, B. Li and L. Wu, Inorg. Chem. Front., 2023, 10, 1852 DOI: 10.1039/D2QI02765H

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