Citation: Huimin Yue, Wenxiang Wang, Kun Wang, Yongqi Liu, Yang Liu, Junan Pan, Xia Liu, Longlu Wang. Epitaxial growth along with atomic substitution for efficient solar hydrogen production[J]. Chinese Chemical Letters, ;2026, 37(11): 111726. doi: 10.1016/j.cclet.2025.111726 shu

Epitaxial growth along with atomic substitution for efficient solar hydrogen production

Huimin Yue ^a ,
Wenxiang Wang ^b ,
Kun Wang ^b ,
Yongqi Liu ^b ,
Yang Liu ^b ,
Junan Pan ^b ,
Xia Liu ^{a, *,} ,
Longlu Wang ^{b, *,}

a.
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
b.
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, China

Liux918@163.com

wanglonglu@njupt.edu.cn

Received Date: 24 June 2025
Revised Date: 8 August 2025
Accepted Date: 14 August 2025
Available Online: 15 August 2025

Figures(4)

Strong interfacial coupling between a semiconductor photocatalyst and a cocatalyst is crucial for enhancing photocatalytic hydrogen production. This study employs an anion exchange strategy to construct atomically thin two-dimensional MoSe₂ nanosheets on one-dimensional CdS nanorods, achieving strong interfacial coupling for effective hydrogen production. Consequently, the CdS@MoSe₂ heterojunctions exhibits a high H₂ evolution rate of 15 mmol h⁻¹ g⁻¹ and an apparent quantum yield of 65% at 420 nm. This remarkable performance is attributed to the well-defined interface structure, in which chemical bonds are formed via strain-driven atomic substitution. The detailed interface structure between CdS and MoSe₂ is clearly revealed through experimental characterizations, while the substitution process is thoroughly explained using theoretical methods. This work introduces a novel approach for optimizing the structure and quality of nanohybrid interfaces via strain-driven atomic substitution.
- Anion exchange,
- MoSe₂ nanosheet,
- CdS nanorods,
- Photocatalysis,
- Hydrogen evolution
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