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- Title
Fabrication of Ni 2 P Cocatalyzed CdS Nanorods with a Well-Defined Heterointerface for Enhanced Photocatalytic H 2 Evolution.
- Authors
Cai, Mengdie; Cao, Siyu; Zhuo, Zhenzhen; Wang, Xue; Shi, Kangzhong; Cheng, Qin; Xue, Zhaoming; Du, Xi; Shen, Cheng; Liu, Xianchun; Wang, Rui; Shi, Lu; Sun, Song
- Abstract
Developing non-noble metal photocatalysts for efficient photocatalytic hydrogen evolution is crucial for exploiting renewable energy. In this study, a photocatalyst of Ni2P/CdS nanorods consisting of cadmium sulfide (CdS) nanorods (NRs) decorated with Ni2P nanoparticles (NPs) was fabricated using an in-situ solvothermal method with red phosphor (P) as the P source. Ni2P NPs were tightly anchored on the surface of CdS NRs to form a core-shell structure with a well-defined heterointerface, aiming to achieve a highly efficient photocatalytic H2 generation. The as-synthesized 2%Ni2P/CdS NRs photocatalyst exhibited the significantly improved photocatalytic H2 evolution rate of 260.2 μmol∙h−1, more than 20 folds higher than that of bare CdS NRs. Moreover, the as-synthesized 2%Ni2P/CdS NRs photocatalyst demonstrated an excellent stability, even better than that of Pt/CdS NRs. The photocatalytic performance enhancement was ascribed to the core-shell structure with the interfacial Schottky junction between Ni2P NPs and CdS NRs and the accompanying fast and effective photogenerated charge carriers' separation and transfer. This work provides a new strategy for designing non-noble metal photocatalysts to replace the noble catalysts for photocatalytic water splitting.
- Subjects
NANORODS; HETEROJUNCTIONS; CADMIUM sulfide; SILVER phosphates; HYDROGEN evolution reactions; CHARGE carriers; RENEWABLE energy sources; PHOTOCATALYSTS
- Publication
Catalysts (2073-4344), 2022, Vol 12, Issue 4, p417
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal12040417