Issue 7, 2022

Emerging investigator series: hetero-phase junction 1T/2H-MoS2 nanosheets decorated by FeOOH nanoparticles for enhanced visible light photo-Fenton degradation of antibiotics

Abstract

The photo-Fenton system is considered to be an economical and environmentally-friendly way to remove organic pollutants in the aquatic environment. However, slow electron transfer and retarded Fe2+/Fe3+ conversion have hampered its practical applications. Herein, we designed and prepared the hetero-phase junction 1T/2H-MoS2@FeOOH, effectively enhancing the photo-Fenton degradation efficiency by 3.25-fold compared to FeOOH alone. Theoretical calculations demonstrated that the 1T/2H-MoS2 hetero-phase junction features mid-gap states and a narrower band gap, enabling broader visible-light absorption and quicker electron transport. Additionally, the application of 1T/2H-MoS2@FeOOH resulted in Fe2+/Fe3+ and Mo4+/Mo6+ dual reaction sites, which were beneficial for the sufficient activation of H2O2 to HO2˙. HO2˙-dominated degradation pathways and mechanisms were revealed to provide new insights for developing advanced oxidation processes to effectively remove emerging contaminants.

Graphical abstract: Emerging investigator series: hetero-phase junction 1T/2H-MoS2 nanosheets decorated by FeOOH nanoparticles for enhanced visible light photo-Fenton degradation of antibiotics

Supplementary files

Article information

Article type
Paper
Submitted
17 Janv. 2022
Accepted
07 Apr. 2022
First published
08 Apr. 2022

Environ. Sci.: Nano, 2022,9, 2342-2350

Emerging investigator series: hetero-phase junction 1T/2H-MoS2 nanosheets decorated by FeOOH nanoparticles for enhanced visible light photo-Fenton degradation of antibiotics

L. Sun, X. Tan, W. Ding and Y. Huang, Environ. Sci.: Nano, 2022, 9, 2342 DOI: 10.1039/D2EN00045H

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