Issue 42, 2021

Self-photoreduced Ag0-doped Ag(i)–organic frameworks with efficient visible-light-driven photocatalytic performance

Abstract

To investigate the facile synthesis strategy for MOF-based plasmonic photocatalysts, an Ag(I)–organic framework [Ag3(psa)(4,4′-bpy)3]·OH·2CH3OH·2H2O (JLNU-91) was prepared by employing phenylsuccinic acid (H2psa) and 4,4′-bipyridine (4,4′-bpy) under room temperature. Under the irradiation of UV light, the separated Ag(I) sites in the framework can be reduced to metallic Ag0, producing a series of Ag0-doped JLNU-91/x. The photocatalytic experiments indicate that the JLNU-91/x samples display improved photocatalytic activities for the degradation of methyl orange (MO) and the optimal JLNU-91/1 has a 2.2 times higher degradation kinetic constant than pure JLNU-91. The photocurrent responses and EIS plots demonstrate that the SPR effect of the self-reduced Ag0 promotes the separation of photoinduced electron–hole pairs. Moreover, the electron spin resonance (ESR) spectra and capture experiments reveal that O2−, ˙OH and the holes play important roles in the photodegradation of MO. This work brings a new insight into the development of MOF-based plasmonic photocatalysts.

Graphical abstract: Self-photoreduced Ag0-doped Ag(i)–organic frameworks with efficient visible-light-driven photocatalytic performance

Supplementary files

Article information

Article type
Paper
Submitted
22 aug 2021
Accepted
18 sep 2021
First published
20 sep 2021

CrystEngComm, 2021,23, 7496-7501

Self-photoreduced Ag0-doped Ag(I)–organic frameworks with efficient visible-light-driven photocatalytic performance

B. Liu, M. Lv, W. Jiang, B. Gao, Y. Li, S. Zhou, D. Wang, C. Liu and G. Che, CrystEngComm, 2021, 23, 7496 DOI: 10.1039/D1CE01133B

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