Issue 4, 2022

Preparation of heterostructured TiO2/MoS2 for efficient photocatalytic rhodamine B degradation

Abstract

Coating a few layers of MoS2 nanosheets on a substrate is an effective approach to enhance catalytic activity for photocatalytic degradation. Herein, we fabricated heterostructured TiO2/MoS2 (H-TiO2/MoS2) with high structural stability via a simple two-step solvothermal approach. H-TiO2/MoS2 was composed of TiO2 as a hard core and MoS2 nanosheets as a shell, which could increase the electron transfer rate between TiO2 and MoS2 and enable active edge sites of MoS2 to be maximally exposed. Besides, H-TiO2/MoS2 indicated enhanced light absorption in the UV to Vis range when compared to TiO2 nanoparticles, and slightly lower than that of MoS2. This is beneficial for the enhancement of the photocatalytic degradation performance. Therefore, H-TiO2/MoS2 displayed a strong adsorption ability toward organic dyes and showed excellent performance in the photocatalytic degradation of rhodamine B with the concentration decreased by 99.4% due to the synergistically stimulative effect. The work will enlighten the development of highly efficient molybdenum sulfide-based heterostructured photocatalysts.

Graphical abstract: Preparation of heterostructured TiO2/MoS2 for efficient photocatalytic rhodamine B degradation

Supplementary files

Article information

Article type
Paper
Submitted
10 Nov 2021
Accepted
09 Jan 2022
First published
12 Jan 2022
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 2185-2190

Preparation of heterostructured TiO2/MoS2 for efficient photocatalytic rhodamine B degradation

P. Li, M. Gao, L. Sun, H. Xu, X. Dong and J. Lin, Mater. Adv., 2022, 3, 2185 DOI: 10.1039/D1MA01050F

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