High-entropy alloys catalyzing polymeric transformation of water pollutants with remarkably improved electron utilization efficiency

High-entropy alloy nanoparticles (HEA-NPs) exhibit favorable properties in catalytic processes, as their multi-metallic sites ensure both high intrinsic activity and atomic efficiency. However, controlled synthesis of uniform multi-metallic ensembles at the atomic level remains challenging. This study successfully loads HEA-NPs onto a nitrogen-doped carbon carrier (HEAs) and pioneers the application in peroxymonosulfate (PMS) activation to drive Fenton-like oxidation. The HEAs-PMS system achieves ultrafast pollutant removal across a wide pH range with strong resistance to real-world water interferences. Furthermore, the nonradical HEAs-PMS system selectively transforms phenolics into high-molecular-weight…

• NN
  National Natural Science Foundation of China

  Awards: KQTD20190929172630447, 52321005
• HI
  Harbin Institute of Technology

  Award: K2024B001
• SK
  State Key Laboratory of Urban Water Resource and Environment
• SS
  Shenzhen Science and Technology Innovation Program

  Awards: GXWD20231129122140001, KQTD20190929172630447