Issue 12, 2019

1T-MoS2 nanopatch/Ti3C2 MXene/TiO2 nanosheet hybrids for efficient photocatalytic hydrogen evolution

Abstract

The biggest challenging issue in photocatalytic hydrogen production is to efficiently separate the photoinduced electron–hole pairs, which requires the enrichment of photoinduced electrons on the photocatalyst's surface. Herein, TiO2 nanosheets (NSs) are in situ grown on highly conductive Ti3C2 MXene and then 1T-MoS2 nanopatches are uniformly distributed on the Ti3C2/TiO2 composite through a two-step hydrothermal method. Thus, a unique 2D structure of the Ti3C2/TiO2/1T-MoS2 composite with double metallic co-catalysts Ti3C2 and 1T phase MoS2 nanopatches is achieved, and the content of 1T phase reaches 84%. The photocatalytic H2 production rate of the Ti3C2/TiO2/1T-MoS2 composite with an optimized MoS2 loading amount (15 wt%) is nearly 132, 11, and 1.5 times higher than that of pure TiO2 NSs, Ti3C2/TiO2 composites and Ti3C2/TiO2/2H-MoS2 composites (15 wt%). The 1T-MoS2 nanopatches on the surface of the Ti3C2/TiO2 composites increase the specific surface area and boost the density of active sites. Besides, the presence of Ti3C2 MXene and 1T phase MoS2 is found to enhance the electronic conductivity, resulting in an increase in efficiency for electron transfer.

Graphical abstract: 1T-MoS2 nanopatch/Ti3C2 MXene/TiO2 nanosheet hybrids for efficient photocatalytic hydrogen evolution

Supplementary files

Article information

Article type
Research Article
Submitted
02 Okt 2019
Accepted
23 Okt 2019
First published
28 Okt 2019

Mater. Chem. Front., 2019,3, 2673-2680

1T-MoS2 nanopatch/Ti3C2 MXene/TiO2 nanosheet hybrids for efficient photocatalytic hydrogen evolution

Y. Li, S. Yang, Z. Liang, Y. Xue, H. Cui and J. Tian, Mater. Chem. Front., 2019, 3, 2673 DOI: 10.1039/C9QM00608G

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