| 초록 |
Exploring new catalytic solids is of great demand to degrade recalcitrants in an efficient/sustainable manner, yet, finds it cumbersome to do so due to low mechano-chemical stabilities of the solids in the presence of strong oxidants. This presentation highlights the use of iron sulfides as novel, cheap catalysts to produce •OH through homolytic H2O2 scission. While employing phenol as a model compound for the recalcitrants, catalytic consequences of the iron sulfides were rigorously assessed via kinetic investigation and compared with iron oxide analogues. This study also showcases a benefit of the iron sulfide catalysts to dissociate H2O2 species via heterogeneous catalysis, as corroborated by controls including recycle runs and H2O2 decomposition experiments. This study therefore justifies S-modified Fe2+ species innate to iron sulfides should be sought after as alternatives of iron oxide catalysts that are currently in use for recalcitrants' degradation via homogeneous catalysis. |
