Boosted photogenerated carriers separation in FeP/Cu3P/ZnIn2S4 photocatalyst for highly efficient H2 evolution under visible light

• Published in: International journal of hydrogen energy Vol. 93; pp. 1 - 12
• Main Authors: Qian, Haixia, Lu, Xuanjin, Wu, Junxian, Fan, Xinfeng, Xie, Shenghui, Xiong, Xinbo, Zou, Jizhao
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 03.12.2024
• Subjects: FeP/Cu3P/ZIS; Hydrogen evolution; Photocatalyst; FeP/Cu3P/ZIS; Photocatalyst; Hydrogen evolution
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2024.10.342

The development of efficient photocatalysts with effective charge separation and numerous active sites is a key challenge in photocatalysis. ZnIn2S4 based binary and ternary composite photocatalysts were successfully synthesized using microwave hydrothermal and calcination techniques, exhibiting excellent hydrogen production capabilities. Among these, the FeP/Cu3P/ZnIn2S4 composite photocatalysts demonstrated the highest hydrogen production performance, with an average rate of 1.613 mmol g−1 h−1, which was 4.42 times greater than that of pure ZnIn2S4. The enhanced hydrogen production of the FeP/Cu3P/ZnIn2S4 photocatalysts was attributed to the establishment of a p-n heterojunction at the ZnIn2S4 interface. Furthermore, the presence of FeP lowered the hydrogen production barrier in the system and provided additional active sites for the catalytic reaction. •FeP/Cu3P/ZnIn2S4 photocatalysts were prepared by a simple calcination method.•FeP/Cu3P/ZnIn2S4 photocatalyst achieved a high H2 yield (1.613 mmol g−1 h−1), which was 4.42 times higher than that of ZnIn2S4.•The co-modification of FeP and Cu3P significantly improved the charge separation efficiency of ZnIn2S4.