Citation: Shengtao Jiang, Mengjiao Xie, Limin Jin, Yifan Ren, Wentian Zheng, Siping Ji, Yanbiao Liu. New insights into electrocatalytic singlet oxygen generation for effective and selective water decontamination[J]. Chinese Chemical Letters, ;2025, 36(5): 110293. doi: 10.1016/j.cclet.2024.110293 shu

New insights into electrocatalytic singlet oxygen generation for effective and selective water decontamination

Shengtao Jiang ^a ,
Mengjiao Xie ^b ,
Limin Jin ^b ,
Yifan Ren ^b ,
Wentian Zheng ^b ,
Siping Ji ^{c, *,} ,
Yanbiao Liu ^{b, *,}

a.
Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Onservation, School of Life Science, Taizhou University, Taizhou 318000, China
b.
College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
c.
School of Chemistry Science and Engineering, Yunnan University, Kunming 650091, China

ydjsp0107@ynu.edu.cn

yanbiaoliu@dhu.edu.cn

Received Date: 21 April 2024
Revised Date: 1 July 2024
Accepted Date: 23 July 2024
Available Online: 25 July 2024

Figures(4)

Singlet oxygen (¹O₂), as an electrophilic oxidant, is essential for the selective water decontamination of pollutants from water. Herein, we showcase a high-performing electrocatalytic filtration system composed of carbon nanotubes functionalized with CoFe alloy nanoparticles (CoFeCNT) to selectively facilitate the electrochemical activation of O₂ to ¹O₂. Benefiting from the prominently featured bimetal active sites of CoFeCNT, nearly complete production of ¹O₂ is achieved by the electrocatalytic activation of O₂. Additionally, the proposed system exhibits a consistent pollutant removal efficiency > 90% in a flow-through reactor over 48 h of continuous operation without a noticeable decline in performance, highlighting the dependable stability of the system for practical applications. The flow-through configuration demonstrates a striking 8-fold enhancement in tetracycline oxidation compared to a conventional batch reactor. This work provides a molecular level understanding of the oxygen reduction reaction, showing promising potential for the selective removal of emerging organic contaminants from water.
- CoFe alloy,
- Oxygen activation,
- Singlet oxygen,
- Electrocatalytic system water decontamination
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