Abstract
BiFeO3/MoS2 nanocomposites with different composition ratios were synthesized under hydrothermal treatment and employed as heterogeneous Fenton-like catalysts. The nanocomposite sample with 80% MoS2 content exhibited the highest Fenton-like activity by degrading acid orange 7, which was 406.0 and 8.8 times higher than that of pristine BiFeO3 and MoS2, respectively. Instrumental characterizations including Raman and XPS were employed to deeply investigate the interfacial interaction between BiFeO3 and MoS2. The results indicated that the strong interfacial coupling of Bi-S bond was formed as a fast electron transfer channel where BiFeO3 could accept electrons from MoS2. A proposed mechanism suggested that the Fenton-like performance of BiFeO3/MoS2 was promoted by the synergistic effect between ≡MoVI/≡MoIV and ≡FeIII/≡FeII redox cycles.
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