Facile synthesis of core–shell Cu2O@ ZnO structure with enhanced photocatalytic H2 production. (May 2018)

• Record Type: Journal Article
• Authors: Zhang, Yong-Hui; Jiu, Bei-Bei; Gong, Fei-Long; Lu, Kuan; Jiang, Nan; Zhang, Hao-Li; Chen, Jun-Li
• Is Part Of: Journal of physics and chemistry of solids. Volume 116(2018)
• Page Start: 126
• Page End: 130
• Publication Date: 2018-05
• Subjects: Cu2O@ZnO -- Core–shell structure -- Semiconductors -- Photocatalytic activity; Solids -- Periodicals; Solides -- Périodiques; Solids; Periodicals; 530.41
• DOI: 10.1016/j.jpcs.2018.01.024
• Languages: English
• ISSNs: 0022-3697

Abstract

Abstract: Core–shell Cu2 O@ZnO composites were synthesized successfully based on a one-pot hydrothermal method in the presence of dioctyl sulfosuccinate sodium salt (AOT) surfactant. The Cu2 O can be converted to rough core–shell Cu2 O@ZnO structure by adjusting the amount of zinc powder added. The as-synthesized Cu2 O@ZnO composites exhibited excellent photocatalytic activity and the amount of H2 generated using these composites was 4.5-fold more than that produced with Cu2 O cubes. A possible photocatalytic mechanism for the Cu2 O@ZnO composites with enhanced photocatalytic activity could be the separation by ZnO of the effective charge carriers. Graphical abstract: Highlights: The core-shell Cu2 O@ZnO structure were prepared. The amount of ZnO has a significant effect on the forming core-shell Cu2 O@ZnO structure. The synthesized Cu2 O@ZnO composites exhibit the excellent photocatalytic activity.