Abstract
NH2-MIL-101(Fe)@ZnIn2S4/ZnS core-shell nanoreactors with S vacancy defects as photocatalytic-Fenton system are fabricated via hydrothermal approach. The introduction of S vacancy in ZnIn2S4 can generate defect levels and thus improve the visible light absorption. The compact core-shell structure formed between ZnIn2S4 and NH2-MIL-101(Fe) provides adequate surface active sites. The short charge transfer path of the formed dual Z-scheme heterojunction nanoreactor greatly accelerates the charge transfer and separation efficiency. It is worth noting that the nanoreactors can produce a large amount of H2O2 and construct an excellent photocatalytic-Fenton system. Under visible light irradiation, NH2-MIL-101(Fe)@ZnIn2S4/ZnS has a high photocatalytic hydrogen production efficiency of 25.371 mmol/g/h and the high degradation efficiency of 99.8% within 150 min for tetracycline. The resultant NH2-MIL-101(Fe)@ZnIn2S4/ZnS photocatalysts will have potential applications in fields of energy and environment.
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