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- W4200432240 abstract "Poly/perfluoroalkyl substances (PFASs) are ubiquitous organic pollutants and the strong C F bonds make them recalcitrant for degradation. In this study, novel In-MOF/BiOF heterojunctions at different doping ratios were synthesized, characterized and evaluated for the photocatalytic removal performance on Perfluorooctanonate (PFOA), perfluorooctane sulfonate (PFOS), hexafluoropropylene oxide trimer acid (HFPO-TA) and 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA). 20% In-MOF/BiOF exhibited effective and complete degradation of PFOA (15 mg/L) under illumination. The reaction rate constants decreased in the order of PFOS > 6:2 Cl-PFESA > PFOA > HFPO-TA. The density functional theory calculation revealed that the reaction rate constant positively correlated with adsorption energies of the PFASs on the catalyst. Additionally, the generation of built-in electric field at the In-MOF and BiOF interfaces enhanced the efficient separation of photogenerated carriers, thus intrinsically facilitated the catalytic performance. The study sheds light on the construction of built-in electric field to improve photocatalytic performance. • In-MOF/BiOF heterojunctions with built-in electric field were constructed. • The In-MOF/BiOF efficiently degraded four Poly/Perfluoroalkyl substances. • The interfacial electric field accelerates the charge transfer and leads to high activity. • DFT calculations uncovered the impacts of adsorption energies on degradation performance." @default.
- W4200432240 created "2021-12-31" @default.
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- W4200432240 date "2022-05-01" @default.
- W4200432240 modified "2023-10-16" @default.
- W4200432240 title "Insights into highly efficient photodegradation of poly/perfluoroalkyl substances by In-MOF/BiOF heterojunctions: Built-in electric field and strong surface adsorption" @default.
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- W4200432240 doi "https://doi.org/10.1016/j.apcatb.2021.121013" @default.
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