Authors
Jiaqu Tan, Min Yu, Jinfeng Wang, Dongya Li, Fan Yang, Yulong Zhang, Xueming Lin
Published in
Advanced science (Weinheim, Baden-Wurttemberg, Germany). Pages e76644. Jul 17, 2026. Epub Jul 17, 2026.
Abstract
Iron sulfides (FexSy) possess excellent capacities for activating peroxydisulfate (PDS) to degrade organic pollutants from wastewater owing to their highly efficient circulation of Fe(III)/Fe(II), but the intrinsic facet-activity relations are still unclear to date. Herein, we employed the FLO-Fe3S4 with a flower-like structure and exposed [001] facet, and OCT-Fe3S4 with octahedral morphology and exposed [1-21] facet as catalysts for activating PDS to degrade clothianidin (CLO). Results show that FLO-Fe3S4 exhibits significantly enhanced catalytic activity, with a CLO degradation rate of 0.4270 min-1, which is 4.4 times higher than that of OCT-Fe3S4. The superior reactivity of FLO-Fe3S4 can be attributed to its longer Fe-S bonds, making them more prone to breaking and releasing more Fe ions for boosting homogeneous PDS activation. Moreover, the shorter Fe-S bond of OCT-Fe3S4 alleviates Fe dissolution, thereby enhancing its catalytic stability and heterogeneous catalytic reaction. Theoretical simulations reveal that the [001] facet of FLO-Fe3S4 favors the adsorption of PDS and provides more electrons to decompose PDS compared with the [1-21] facet of OCT-Fe3S4. Overall, this work delves into the intrinsic facet-activity relations for Fe3S4 crystals on PDS activation and further unravels the overlooked role of crystal Fe-S length on catalytic reaction.
PMID:
42467852
Bibliographic data and abstract were imported from PubMed on 18 Jul 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 3
- Comments 0