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- W2918532317 abstract "Abstract Fe@Fe2O3 core-shell nanowire is a promising heterogeneous Fenton iron catalyst to degrade organic pollutants. So far, the roles of hydroxylamine (HA) in Fe@Fe2O3/HA system for pollutant degradation still remain unknown. In this study, the HA-facilitated degradation of rhodamine B (RhB) and p-nitrophenol (PNP) by Fe@Fe2O3 was reported and the underlying mechanisms were explored. Results show that addition of HA significantly enhanced degradation of organic pollutants and a higher HA dosage caused a faster degradation rate. The degradation process was completely inhibited by scavengers, indicating the hydroxyl radical (HO ) from bulk solution dominated the reactions. HA in the Fe@Fe2O3/H2O2/HA system was highly efficient to promote the generation of HO by accelerating both the Fe3+/Fe2+ cycle and the H2O2 decomposition. Meanwhile, HA itself was rapidly decomposed along with the pollutants degradation. About 50.5% of RhB and 46.4% of PNP were mineralized in the presence of HA. The effective pH value for degradation was expanded from 4.0 to 5.0. The EE/O calculations demonstrate that a higher energy input for PNP was required than that for RhB. This study will shed lights on the reactivity of the Fe@Fe2O3/HA system and provide an alternative pathway for removal of organic contaminants." @default.
- W2918532317 created "2019-03-11" @default.
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- W2918532317 date "2019-05-01" @default.
- W2918532317 modified "2023-10-16" @default.
- W2918532317 title "Hydroxylamine-facilitated degradation of rhodamine B (RhB) and p-nitrophenol (PNP) as catalyzed by Fe@Fe2O3 core-shell nanowires" @default.
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- W2918532317 doi "https://doi.org/10.1016/j.molliq.2019.02.136" @default.
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