Liquid metal-embraced photoactive films for artificial photosynthesis

Chao Zhen, Xiangtao Chen, Ruotian Chen, Fengtao Fan, Xiaoxiang Xu, Yuyang Kang, Jingdong Guo, Lianzhou Wang, Gao Qing (Max) Lu, Kazunari Domen, Hui-Ming Cheng and Gang Liu ()
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Chao Zhen: Chinese Academy of Sciences
Xiangtao Chen: Northeastern University
Ruotian Chen: Chinese Academy of Sciences
Fengtao Fan: Chinese Academy of Sciences
Xiaoxiang Xu: Tongji University
Yuyang Kang: Chinese Academy of Sciences
Jingdong Guo: Chinese Academy of Sciences
Lianzhou Wang: The University of Queensland
Gao Qing (Max) Lu: University of Surrey
Kazunari Domen: Shinshu University
Hui-Ming Cheng: Chinese Academy of Sciences
Gang Liu: Chinese Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-13

Abstract: Abstract The practical applications of solar-driven water splitting pivot on significant advances that enable scalable production of robust photoactive films. Here, we propose a proof-of-concept for fabricating robust photoactive films by a particle-implanting technique (PiP) which embeds semiconductor photoabsorbers in the liquid metal. The strong semiconductor/metal interaction enables resulting films efficient collection of photogenerated charges and superior photoactivity. A photoanode of liquid-metal embraced BiVO4 can stably operate over 120 h and retain ~ 70% of activity when scaled from 1 to 64 cm2. Furthermore, a Z-scheme photocatalyst film of liquid-metal embraced BiVO4 and Rh-doped SrTiO3 particles can drive overall water splitting under visible light, delivering an activity 2.9 times higher than that of the control film with gold support and a 110 h stability. These results demonstrate the advantages of the PiP technique in constructing robust and efficient photoactive films for artificial photosynthesis.

Date: 2024
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DOI: 10.1038/s41467-024-46073-6

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