Electron delocalization triggers nonradical Fenton-like catalysis over spinel oxides
Abstract
Advanced oxidation processes based on Fenton-like catalysis have been a core decontamination technology to protect the aquatic environment. However, implementing such technologies in an economically affordable and environmentally benign way remains a big challenge which hinders their widespread application, especially in underdeveloped countries/regions. Nonradical catalysis for selective decontamination based on inexpensive transition metal oxides offers opportunities to address this challenge, but a rational design of such catalysts has been hindered by poor understanding of the complicated bimetallic synergism. Herein, we shed light on the origins of the synergistic catalytic activity and selectivity of Fe-Mn spinel oxide, based on which we created a spinel oxide with unprecedented nonradical activity and peroxymonosulfate utilization efficiency to favor practical environmental application.
- Publication:
-
Proceedings of the National Academy of Science
- Pub Date:
- August 2022
- DOI:
- 10.1073/pnas.2201607119
- Bibcode:
- 2022PNAS..11901607G