Citation: Zheng Liu, Yuqing Bian, Graham Dawson, Jiawei Zhu, Kai Dai. Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production[J]. Chinese Chemical Letters, ;2025, 36(9): 111272. doi: 10.1016/j.cclet.2025.111272 shu

Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production

Zheng Liu ^{a, 1} ,
Yuqing Bian ^{a, 1} ,
Graham Dawson ^b ,
Jiawei Zhu ^{a, *,} ,
Kai Dai ^{a, *,}

a.
Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
b.
Department of Chemistry, Xi'an Jiaotong Liverpool University, Suzhou 215123, China

zjw1584038799@mail.ustc.edu.cn

daikai940@chnu.edu.cn

Received Date: 27 January 2025
Revised Date: 25 April 2025
Accepted Date: 27 April 2025
Available Online: 28 April 2025

Figures(4)

Photocatalytic hydrogen peroxide (H₂O₂) production (PHP) offers significant advantages to traditional production methods, including solar energy utilization, mild reaction conditions, environmental friendliness, pollution-free processes, sustainability, and high selectivity. However, despite its potential as a green and sustainable technology, photocatalytic H₂O₂ production (PHP) is constrained by limited visible light absorption by photocatalysts and the rapid recombination of photogenerated charge carriers, which reduce yield and efficiency. In this study, we synthesized an organic amine constrained Zn_0.5Cd_0.5S-DETA/g-C₃N₄ (ZCS-D/CN) S-scheme heterojunction via a hydrothermal method to enhance PHP. Anchoring ZCS-D on the surface of CN and forming an S-scheme heterojunction effectively prevented ZCS-D agglomeration, modulated the band structure of CN, and enhanced the migration and redox capabilities of photogenerated charge carriers. The optimized heterojunction (ZCS-D/CN) achieved a H₂O₂ yield of 5124 µmol g^-1 h^-1 in pure H₂O, significantly outperforming pure CN (24 µmol g^-1 h^-1) and ZCS-D (4012 µmol g^-1 h^-1). These results demonstrate that ZCS-D/CN S-scheme heterojunction holds substantial potential for photocatalytic applications, particularly in the efficient production of H₂O₂.
- Photocatalytic,
- Hydrogen peroxide,
- g-C₃N₄,
- S-scheme,
- Zn_0.5Cd_0.5S
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Rational constructing of Zn0.5Cd0.5S-diethylenetriamine/g-C3N4 S-scheme heterojunction with enhanced photocatalytic H2O2 production

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通讯作者: 陈斌, bchen63@163.com

Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production