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The Role of NiSe2 Nanosheets in Boosting the Photocatalytic H2 Generation of Ultrafine ZnCdS Nanoparticles Under Visible Light

Year: 2024

Type: article

Abstract: The exploration for a suitable cocatalyst to substitute noble metals is crucial to establishing an efficient photocatalytic system. In this study, a facile solution‐based approach is employed to integrate sheetlike NiSe2 nanostructure as a cocatalyst onto ultrafine ZnCdS nanoparticles, with the objective of enhancing photocatalytic H2 production. Notably, the optimized 3% NiSe2/ZnCdS photocatalyst exhibits a remarkable enhancement in photocatalytic H2 evolution rate, achieving 7779 µmol g−1 h−1, representing an 8.3‐fold increase compared to ZnCdS. Furthermore, the NiSe2/ZnCdS demonstrate exceptional stability during cycling tests. The impressive photocatalytic performance can be ascribed to the presence of NiSe2 nanosheets, which facilitate photoinduced electron transfer and offer active sites for the H2 evolution reaction. In addition, a comprehensive analysis of experimental data and density functional theory (DFT) calculations elucidates a plausible mechanism for the enhanced photocatalytic performance. This study provides valuable insights into the development of noble‐metal‐free ZnCdS‐based photocatalysts, a promising candidate for efficient solar‐to‐H2 energy conversion due to their growing prominence in the field.

Source: ChemCatChem

DOI: 10.1002/cctc.202401150

Authors: Gang He, Qingru Zeng, Wei Luo, Yimin Liu, Yuezhou Wei, Deqian Zeng

Institutions: Guangxi University, University of South China

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funders: National Natural Science Foundation of China, Natural Science Foundation of Guangxi Province