Environmental Studies and Forestry

Self-cycled photo-Fenton-like system based on an artificial leaf with a solar-to-H₂O₂ conversion efficiency of 1.46%

C. Dong, Y. Yang, et al.

Discover an innovative self-cyclable system that couples solar light-assisted H₂O₂ production with photo-Fenton-like reactions using an artificial leaf. Achieving an unassisted H₂O₂ production rate of 0.77 µmol/(min·cm²) and a solar-to-hydrogen peroxide efficiency of 1.46%, this research from Chaoran Dong, Yilong Yang, Xuemin Hu, Yoonjun Cho, Gyuyong Jang, Yanhui Ao, Luyang Wang, Jinyou Shen, Jong Hyeok Park, and Kan Zhang showcases the potential for decentralized wastewater purification using just water, oxygen, and sunlight.

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Abstract

This paper presents a self-cyclable system coupling solar light-assisted H₂O₂ production from water and photo-Fenton-like reactions using an artificial leaf. It achieves an unassisted H₂O₂ production rate of 0.77 µmol/(min·cm²) under 1 Sun AM 1.5 illumination, with a solar-to-hydrogen peroxide efficiency (SHyE) of 1.46%. A larger artificial leaf (70 cm²) was used for wastewater purification, requiring only water, oxygen, and sunlight. The system demonstrates the feasibility and scalability of photoelectrochemical technology for decentralized environmental applications.

Publisher

Nature Communications

Published On

Aug 25, 2022

Authors

Chaoran Dong, Yilong Yang, Xuemin Hu, Yoonjun Cho, Gyuyong Jang, Yanhui Ao, Luyang Wang, Jinyou Shen, Jong Hyeok Park, Kan Zhang

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