Sustainable Fe and Cu Sites Double Redox Cycle Boosting Fenton-like Degradation of Organic Pollutants

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Experimental analysis shows that the FeCu-CN catalyst improves pollutant degradation, suggesting a sustainable dual-metal redox cycle.

The FeCu-CN catalyst demonstrates 23 times higher pollutant degradation rates than Fe-CN.
DFT calculations reveal that Cu site enhances electron supply for the Fe(III)/Fe(II) cycle.
FeCu-CN maintains catalytic stability by promoting the Cu(II)/Cu(I) cycle with H2O2.
The system shows resilience across pH levels, indicating strong potential for wastewater treatment.

Hu et al. (2025) studied this question.

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