Constructing Atomic-level Dispersed Fe-N-C Catalyst to Enhance Photo-Fenton Activity for Water Purification.

Atomic-level dispersed Fe-N/C catalyst achieves 97.8% degradation of PPCPs under visible light, demonstrating superior photo-Fenton activity for water purification.

• Why it matters: Efficient removal of pharmaceuticals and personal care products from water remains a challenge with traditional Fenton methods, risking environmental and health impacts.
• What they did: A Fe single-atom catalyst (Fe SAC /CN-10) was synthesized using thermal polymerization and photoreduction, with Fe atoms anchored onto a g-C3N4 support, and its structure verified by XAFS spectroscopy.
• The result: The catalyst's atomic dispersion enhances charge separation and redox cycling, accelerating reactive oxygen species generation, enabling broad-spectrum, pH-tolerant, and reusable PPCP degradation.