AI Article Synopsis
- Two-dimensional BiOBr nanosheets are gaining attention for their potential as photocatalysts, particularly for their surface active sites which influence performance under visible light.
- The study introduces a method to modify BiOBr NSs by depositing vanadate-rich sites without strong reductants, enhancing their photocatalytic properties.
- The modified BiOBr/Bi nanosheets showed improved adsorption and photodegradation of Rhodamine B, outperforming both pristine BiOBr NSs and previously modified variants.
Article Abstract
Two-dimensional (2D) BiOBr nanosheets (NSs) have attracted considerable interest as photocatalysts. The surface active sites of BiOBr NSs are crucial in determining the photocatalytic performance of these materials under visible light. The modification of the surface state of BiOBr NSs with multiple charged groups has been scarcely studied as a way to increase the number of surface active sites and the corresponding photocatalytic activity. Herein, vanadate-rich 2D BiOBr/Bi NSs were fabricated without adding strong reductants and subsequently used for visible-light-driven photocatalysis. Even under reductant-free condition, we were able to simultaneously deposit Bi and vanadate groups on the surface of pristine BiOBr NSs. The corresponding formation mechanism was also explored in a subsequent step. Compared to pristine BiOBr NSs and BiOBr/Bi NSs, the vanadate-rich BiOBr/Bi NSs prepared herein exhibited superior adsorption and enhanced photodegradation of Rhodamine B (RhB) under visible light illumination.
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| http://dx.doi.org/10.1166/jnn.2020.17331 | DOI Listing |
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