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- W2953353724 endingPage "120753" @default.
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- W2953353724 abstract "• A facile and eco-friendly fabrication using high-power ultrasonic tip is presented. • Defect-rich α-MoO 3 ( dr -MoO 3 ) flakes are fabricated by cavitation and pitting. • The dr -MoO 3 photocatalyst delivers excellent photocatalytic performance for RhB. • Superior photocatalytic behavior is due to its rich exposed reactive edge sites For the first time, we present a novel, facile and eco-friendly engineering defect method, to produce defect-rich α-MoO 3 ( dr- MoO 3 ) nanoflakes with abundant exposed reactive edge sites, by applying cavitation and pitting effect of high-power ultrasonic tip to inch-size α-MoO 3 single crystals. The as-prepared dr- MoO 3 nanoflakes deliver excellent photocatalytic activity for degradation of Rhodamine B (RhB) under visible light irradiation. The degradation apparent rate constant k of dr- MoO 3 is as large as 5.9 × 10 −2 min −1 , which is ˜6.6 times higher than commercial α-MoO 3 ( com- MoO 3 ). The superior photocatalytic performance of dr- MoO 3 is attributed to its rich exposed edges and slight expansion of interlayer space, which not only enhance the adsorption of H 2 O and OH − , provide abundant highly reactive sites, but also shorten the distance of photogenerated carriers moving to the reactive sites. This work provides new insights into the self-enhancement of α-MoO 3 photocatalytic activities, which could be extended to other layered semiconductor photocatalysts." @default.
- W2953353724 created "2019-06-27" @default.
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- W2953353724 date "2019-10-01" @default.
- W2953353724 modified "2023-09-24" @default.
- W2953353724 title "Enhanced photocatalytic properties of defect-rich α-MoO3 nanoflakes by cavitation and pitting effect" @default.
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- W2953353724 doi "https://doi.org/10.1016/j.jhazmat.2019.120753" @default.
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