Oxygen vacancies in Z-scheme r-MIL-88A/OV-BiOBr heterojunctions enhance photo-Fenton degradation of chloroquine phosphate: Mechanisms insight, DFT calculations, degradation pathways and toxicity assessment

Shiliang Heng,Xueqin Lu,Yenan Song, Zhaobin Liu, Lingtian Hu, Yisheng Liu,Jing Liu,Teng Cai,Guangyin Zhen

Journal of Materials Science & Technology（2024）

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摘要

•Z-scheme r-MIL-88A/OV-BiOBr heterojunction showed excellent photo-Fenton activity.•PVP regulated concentration of OVs and enhanced photoabsorption ability.•Synergistic effect between Fe2+/Fe3+ cycle and OVs accelerated e–/h+ separation.•e–, 1O2 and •O2− were the major reactive species for CQ photo-Fenton degradation.

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关键词

Oxygen vacancies,MIL-88A(Fe),Photo-Fenton system,Chloroquine phosphate,Reactive oxidation species

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