Construction of LSPR-enhanced 0D/2D CdS/MoO3− S-scheme heterojunctions for visible-light-driven photocatalytic H2 evolution

By Jun Shen, Xiaohui Yu, Hua Tang, Zulfiqar, Qinqin Liu. Chinese Journal of Catalysis, 2021

228 citations recorded by the source corpus.

Abstract Plasmonic nonmetal semiconductors with localized surface plasmon resonance (LSPR) effects possess extended light-response ranges and can act as highly efficient H2 generation photocatalysts. Herein, an LSPR-enhanced 0D/2D CdS/MoO3−x heterojunction has been synthesized by the growth of 0D CdS nanoparticles on 2D plasmonic MoO3−x elliptical nanosheets via a simple coprecipitation method. Taking advantage of the LSPR effect of the MoO3−x elliptical nanosheets, the light absorption of the CdS/MoO3−x heterojunction was extended from 600 nm to the near-infrared region (1400 nm). Furthermore, the introduction of 2D plasmonic MoO3−x elliptical nanosheets not only provided a platform for the growth of CdS nanoparticles, but also contributed to the construction of an LSPR-enhanced S-scheme structure due to the interface between the MoO3−x and CdS, accelerating the separation of light-induced electrons and holes. Therefore, the CdS/MoO3−x heterojunction exhibited higher photocatalytic H2 generation activity than pristine CdS under visible light irradiation, including under 420, 450, 550, and 650 nm monochromic light, as well as improved photo-corrosion performance.

Subfields: Electrical and Electronic Engineering, Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/6904662bdf6b60b5ec6e3d70ea6a338c735c0cb6