dc.creator | Zhao F., Xiao J., Geng S., Wang Y., Tsiakaras P., Song S. | en |
dc.date.accessioned | 2023-01-31T11:38:26Z | |
dc.date.available | 2023-01-31T11:38:26Z | |
dc.date.issued | 2022 | |
dc.identifier | 10.1016/j.electacta.2022.141381 | |
dc.identifier.issn | 00134686 | |
dc.identifier.uri | http://hdl.handle.net/11615/80978 | |
dc.description.abstract | Fe3+/Fe2+ interconversion is one of the key factors for heterogeneous electro-Fenton degradation of organic pollutants. In this study, MIL-101Fe-derived carbon wrapping Fe7S8 nanocomposite (Fe7S8/C-1-600) exhibits outstanding rhodamine B (RhB) degradation ability with extremely low iron leaching and high recyclable degradability within 60 min in a wide pH range. Moreover, Fe7S8/C-1-600 presents a much higher activity for RhB degradation than Fe3O4 counterpart without sulfidation, which could be mainly attributed to the accelerated Fe3+/Fe2+ cycling by iron with both multiple valences (Fe0, Fe2+, and Fe3+) and sulfur species (S2− and S22−) of the catalyst. The enhancement of H2O2 adsorption and activation into OH on Fe7S8 surface is confirmed by density functional theory calculations with respect to that on Fe3O4. Interestingly, SO4·− can be generated by reacting S22− with dissolved O2 and subsequently converted into ·OH, which further facilitates RhB degradation. These findings may shed a new insight into the potential application of metal sulfides for wastewater treatment. © 2022 Elsevier Ltd | en |
dc.language.iso | en | en |
dc.source | Electrochimica Acta | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141816732&doi=10.1016%2fj.electacta.2022.141381&partnerID=40&md5=b964fba3e5b03b97502848b80fc4029c | |
dc.subject | Density functional theory | en |
dc.subject | Iron | en |
dc.subject | Magnetite | en |
dc.subject | Metal-Organic Frameworks | en |
dc.subject | Organic chemicals | en |
dc.subject | Organic pollutants | en |
dc.subject | Rhodium compounds | en |
dc.subject | Sulfur compounds | en |
dc.subject | Wastewater treatment | en |
dc.subject | Electro-fenton | en |
dc.subject | Fe 3+ | en |
dc.subject | Fe7S8/C nanocomposite | en |
dc.subject | Heterogeneous electro-fenton | en |
dc.subject | Interconversions | en |
dc.subject | Iron cycle | en |
dc.subject | Metalorganic frameworks (MOFs) | en |
dc.subject | Organic pollutant degradation | en |
dc.subject | Rhodamine B | en |
dc.subject | Rhodamine-B | en |
dc.subject | Nanocomposites | en |
dc.subject | Elsevier Ltd | en |
dc.title | Novel Fe7S8/C nanocomposites with accelerating iron cycle for enhanced heterogeneous electro-Fenton degradation of dyes | en |
dc.type | journalArticle | en |