Construction of Au/g-C3N4/ZnIn2S4 plasma photocatalyst heterojunction composite with 3D hierarchical microarchitecture for visible-light-driven hydrogen production. (15th January 2022)

• Record Type: Journal Article
• Authors: Liu, Xiaoming; Wang, Suqing; Yang, Fang; Zhang, Yinchu; Yan, Liushui; Li, Kexin; Guo, Huiqin; Yan, Jiajun; Lin, Jun
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 5(2022)
• Page Start: 2900
• Page End: 2913
• Publication Date: 2022-01-15
• Subjects: Au/ZnIn2S4/g-C3N4 -- Surface plasmon resonance -- Heterojunction; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2021.10.203
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In this paper, a novel Au/g-C3 N4 /ZnIn2 S4 plasma photocatalyst heterojunction composite with 3D hierarchical microarchitecture has been successfully constructed by integrating Au/g-C3 N4 plasmonic photocatalyst composite with 3D ZnIn2 S4 nanosheet through a simple hydrothermal process. The Au nanoparticles were firstly anchored on the surface of pristine g-C3 N4 material to get Au/g-C3 N4 plasmonic photocatalyst. Ascribing to the surface plasmon resonance of Au nanoparticles, the obtained Au/g-C3 N4 plasmonic photocatalyst shows a significant improved photocatalytic activity toward hydrogen production from water with visible light response comparing with pristine g-C3 N4 . Further combining Au/g-C3 N4 plasmonic photocatalyst with 3D ZnIn2 S4 nanosheet to construct a heterojunction composite. Owing to the synergistic effect of the surface plasmon resonance of Au nanoparticles in Au/g-C3 N4 and the heterojunction structure in the interface of Au/g-C3 N4 and ZnIn2 S4, the prepared Au/g-C3 N4 /ZnIn2 S4 plasma photocatalyst heterojunction composite shows an excellent photocatalytic activity toward hydrogen production from water with visible light response, which is around 7.0 and 6.3 times higher than that of the pristine C3 N4 and Znln2 S4 nanosheet, respectively. The present work might provide some insights for exploring other efficient heterojunction photocatalysts with excellent properties. Graphical abstract: Image 1 Highlights: A series of Au/g-C3 N4 /ZnIn2 S4 plasma photocatalyst heterojunction composites were prepared by a hydrothermal process. Ascribing to SPR effect and heterojunction, the Au/g-C3 N4 /ZnIn2 S4 composite shows an excellent photocatalytic activity. The photocatalytic mechanism of Au/g-C3 N4 /ZnIn2 S4 composite has been tentatively proposed.