A one-photon excitation pathway in 0D/3D CoS2/ZnIn2S4 composite with nanoparticles on micro-flowers structure for boosted visible-light-driven photocatalytic hydrogen evolution. (1st June 2022)

• Record Type: Journal Article
• Authors: Cai, Yi; Shi, Yuxing; Shi, Weilong; Bai, Song; Yang, Shengtao; Guo, Feng
• Is Part Of: Composites. Number 238(2022)
• Publication Date: 2022-06-01
• Subjects: CoS2-ZnIn2S4 -- Photocatalysis -- H2 evolution -- One-photon excitation -- 0D/3d composite; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2022.109955
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Converting solar energy into hydrogen production is a promising approach to tackle the energy crisis. However, developing excellent photocatalytic materials with properties of positive visible light response, high efficiency and photostability remain a great challenge. Herein, we developed a one-photon excitation path system by coupling 3D ZnIn2 S4 micro-flowers with 0D CoS2 nanoparticles for hydrogen evolution, with an optimal hydrogen evolution rate of 22.24 mmol h −1 g −1 . The systematic characterizations and DFT calculations disclose that the improved performance is ascribed to the construction of 0D/3D with multi-reflection and exposed reaction sites, as well as the incorporation of CoS2 and ZIS via a one-photon excitation pathway, achieving the acceleration of photoinduced charge separation and transfer. This work shed light on the design of 0D/3D photocatalysts with high hydrogen evolution performance via a one-photon excitation pathway.