Citation: Bin Lei, Zongxing Tu, Dou Chen, Qin Luo, Xiaoying Peng, Suqin Wu, Guiming Peng. Nitrogen-defective carbon nitride nanorod arrays for continuous-flow photosynthesis of H₂O₂[J]. Chinese Chemical Letters, ;2026, 37(6): 112004. doi: 10.1016/j.cclet.2025.112004 shu

Nitrogen-defective carbon nitride nanorod arrays for continuous-flow photosynthesis of H₂O₂

College of Chemistry and Materials, Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang 330022, China

wusu.qin@163.com

guiming@jxnu.edu.cn

Received Date: 9 August 2025
Revised Date: 14 October 2025
Accepted Date: 21 October 2025
Available Online: 24 October 2025

Figures(6)

The surface activity and continuous photosynthesis with easy product separation are two main concerns for practical H₂O₂ photogeneration which calls for integration of efficient photocatalyst with specifically designed reactor. Taking advantage of the intrinsic superior charge separation and electron transfer of the one-dimensional CN, herein, N-vacancy abundant carbon nitride nanorod arrays (CNNRs) were demonstrated as an efficient photocatalyst either in convention photocatalysis or in emerging flow photocatalytic H₂O₂ production. The N-vacancies multifunctionally enhance light harvesting, elevate conduction band, adsorb and activate O₂ molecules. As a result, the N-defective CNNRs delivered 5.2 and 2.1 times higher H₂O₂ yield in its powder form than common CN nanosheets and defect-free CNNRs, reaching 18.8 mmol g^-1 h^-1 with AQY of 13.4% at 400 nm in ethanol-containing solution. Moreover, the CNNRs on glass, as a photocatalyst panel, exhibits remarkable fixed-bed and continuous flow photocatalytic H₂O₂ production performances, with yield up to 23.6 and 14.2 mmol m^-2 h^-1, respectively. Mechanism investigation discloses the sequential two-step 1e oxygen reduction pathway that accounts for H₂O₂ photogeneration, with further thermal-dynamical confirmation by DFT calculation. This work introduces a new paradigm by combining photocatalyst design with advanced flow reactors to achieve continuous photosynthesis of H₂O₂, which may inspire many other photo-to-chemical conversions as well.
- Photocatalysis,
- Hydrogen peroxide,
- Carbon nitride,
- Continuous-flow,
- Electronic modulation
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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

Nitrogen-defective carbon nitride nanorod arrays for continuous-flow photosynthesis of H2O2

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通讯作者: 陈斌, bchen63@163.com

Nitrogen-defective carbon nitride nanorod arrays for continuous-flow photosynthesis of H₂O₂