Citation: Jiayao Wang, Guixu Pan, Ning Wang, Shihan Wang, Yaolin Zhu, Yunfeng Li. Preparation of donor-π-acceptor type graphitic carbon nitride photocatalytic systems via molecular level regulation for high-efficient H₂O₂ production[J]. Acta Physico-Chimica Sinica, ;2025, 41(12): 100168. doi: 10.1016/j.actphy.2025.100168 shu

Preparation of donor-π-acceptor type graphitic carbon nitride photocatalytic systems via molecular level regulation for high-efficient H₂O₂ production

Jiayao Wang ^{1, †} ,
Guixu Pan ^{1, †} ,
Ning Wang ^1,, ,
Shihan Wang ¹ ,
Yaolin Zhu ^2,, ,
Yunfeng Li ^1,,

1.
College of Environmental and Chemical Engineering, Key Laboratory of Functional Textile Material and Product of the Ministry of Education, Xi'an Polytechnic University, Xi'an 710048, Shannxi Province, China
2.
School of Electronics and Information, Xi'an Polytechnic University, Xi'an 710048, Shannxi Province, China

Corresponding author: Ning Wang, ninaw2018@163.com Yaolin Zhu, 20070802@xpu.edu.cn Yunfeng Li, liyf377@nenu.edu.cn
Received Date: 19 July 2025
Revised Date: 17 August 2025
Accepted Date: 18 August 2025

Fund Project: the National Natural Science Foundation of China 22008185the National Natural Science Foundation of China 21872023the Shaanxi Provincial Key Research and Development Program 2022GY-166the Shaanxi Provincial Key Research and Development Program 2024SF-YBXM-593the Shaanxi Provincial Department of Education Youth Innovation Team Research Plan Project 24JP072Scientific Research Program Funded by Shaanxi Provincial Education Department 23JC033the Xi'an Science and Technology Planning Project 24GXFW0021

Donor-π-Acceptor (D-π-A) conjugated polymers represent an emerging class of materials featuring alternating electron donor (D), π-bridge (π), and electron acceptor (A) units, which exhibit significant potential in enhancing visible-light absorption and optimizing charge separation and redistribution. To overcome the limitations of graphitic carbon nitride (g-C₃N₄) while capitalizing on the structural merits of D-π-A systems, a series of 4-aromatic amine derivatives modified g-C₃N₄ photocatalysts was designed and synthesized through precise molecular level regulation with tailored local electron delocalization. This strategy allows for a systematic investigation of the relationship between electron delocalization extent and photocatalytic H₂O₂ production. Furthermore, the electron-withdrawing induction effect for regulating electron delocalization results in a substantial enhancement of photoinduced electron transfer to surface reactive sites. The as-synthesized optimum photocatalyst exhibits a remarkable H₂O₂ production performance, which is 30.44 times higher than that of the pristine g-C₃N₄. The mechanism study reveals that the photocatalytic H₂O₂ production in D-π-A-type g-C₃N₄ proceeds primarily via a two-electron oxygen reduction reaction (ORR).
- Photocatalysis,
- g-C₃N₄,
- D-π-A structure,
- Supramolecular self-assembly,
- H₂O₂ production.
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation of donor-π-acceptor type graphitic carbon nitride photocatalytic systems via molecular level regulation for high-efficient H2O2 production

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通讯作者: 陈斌, bchen63@163.com

Preparation of donor-π-acceptor type graphitic carbon nitride photocatalytic systems via molecular level regulation for high-efficient H₂O₂ production