joy Onwumere, Rong Hua, Guojun Zhou, Haoquan Zheng, Zhehao Huang
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引用次数: 0
摘要
有机污染物对水资源的污染给环境和健康带来了巨大挑战。因此，开发高效、绿色的有机水污染物处理方法迫在眉睫。氧溴化铋（BiOBr）因其高光活性而备受关注。在这项工作中，我们报告了一种提高其光催化活性的改性方法。制备 BiOBr 时使用了封端剂苯-1,3,5-三羧酸来调整化合物的形态。因此，与基准二氧化钛和块状 BiOBr 催化剂相比，BiOBr 纳米片对罗丹明 B 的光降解效率最高。
Bismuth Oxybromide Nanosheet as an Efficient Photocatalyst for Dye Degradation
The contamination of water resources by organic pollutants presents significant environmental and health challenges. Therefore, it is urgent to develop highly efficient and green approach for treating organic water pollutants. Bismuth oxybromide (BiOBr) has gained attention due to its high photoactivity. In this work, we report a modification to improve its photocatalytic activity. BiOBr were prepared using a capping agent, benzene-1,3,5-tricarboxylic acid, to tune the morphology of the compound. The resulting BiOBr shows nanosheet morphology, which provides a high surface-to-volume ratio and a larger conduction band compared to bulk BiOBr. As a result, the BiOBr nanosheets show the highest efficiency for photodegradation of Rhodamine B, compared to benchmark TiO2 and bulk BiOBr catalysts.
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